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Zoology 101 - Extras for Final
To study for the final, please use my three other sets along with this one, because I don't have time to make a huge set this weekend <3
287
Biology
Undergraduate 1
12/16/2011

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Term
Interneuron
Definition
Term: Neuron within the CNS; relays sensory neuron information to motor neuron.
Term
Motor Neuron
Definition
Term: Neuron that brings information from the CNS to the effector (such as a muscle).
Term
Soma (Cell body)
Dendrite
Axon
Definition
What are the three parts of a neuron?
Term
Myelin Sheath;
Lipids
Definition
What is the axon covered in, and what is this covering made of?
Term
Action Potential
Definition
Term: AP
Term
Action potential
Definition
Term: Nervous Impulse
Term
Node of Ranvier
Definition
Term: Part of the axon of a neuron that is not covered by a myelin sheath.
Term
Very fast; from one Node of Ranvier to the next.
Definition
How does the action potential travel?
Term
Action Potential
Definition
What is the signal of the NS?
Term
Change in membrane permeability
Definition
How is action potential produced?
Term
-70 millivolts
Definition
What is the resting potential of a neuron?
Term
There is more negative potential on the inside because of proteins, and more + on outside due to Sodium.
Definition
Why is there a negative amount of millivolts for the resting potential?
Term
Sodium-Potassium-ATPase pump
Definition
Term: Maintains resting potential.
Term
Pumps Sodium in and Potassium out
Definition
What is the function of the Sodium-Potassium-ATPase pump?
Term
Once it reaches the threshold and goes through depolarization.
Definition
When is AP generated with a minimum stimulus?
Term
Vesicles
Definition
Term: Sacs holding chemicals that take place in the NS.
Term
Exocytosis
Definition
What makes the vesicles, filled with chemicals, empty over the edge?
Term
No, it's all or nothing.
Definition
Can there be a 1/2 response of action potential?
Term
Refractory period
Definition
What occurs after the action potential?
Term
The membrane is hyperpolarized (less millivolts than resting period).
Definition
What happens during the refractory period?
Term
A large number of Potassium ions was released.
Definition
Why does the refractory period occur?
Term
The Sodium-Potassium-ATPase pump works during the refractory period to bring levels back to the resting period.
Definition
What happens after the refractory period occurs?
Term
Not all the gate channels have been reset.
Definition
Why is it so difficult for new action potential to be generated during the refractory period?
Term
About 1.5 milliseconds
Definition
About how long does the refractory period last?
Term
1. Increasing the axon diameter
2. Adding myelin sheath
Definition
How can the speed of action potential be increased?
Term
Giant squid
Definition
Which animal has the largest diameter axon and great escape response?
Term
Synapse neuron -> Neuron -> Muscle cell/Gland cell
Definition
What happens when the action potential reaches the axon terminal?
Term
Synaptic Cleft
Definition
Term: Space between neurons
Term
Electrical Synapse
Chemical Synapse
Definition
What are the two types of synapses?
Term
Positive ions move directly from 1 neuron to the next; go in both directions.
ex) Fish darting away
Definition
Describe an electrical synapse and give an example of the reaction to one.
Term
Chemicals, stored in vesicles, act as neurotransmitters that diffuse across the synaptic cleft and bind to a receptor in the postsynaptic membrane and cause depolarization.
Ex) Epinephrine causes a burst of energy.
Definition
Describe a chemical synapse and an example of one in use.
Term
Acetocholine (ACh)
Epinephrine
Definition
Give an example of a chemical synapse.
Term
AChE
Definition
Give an example of a neurotransmitter-deactivator.
Term
It must be deactivated
Definition
In order for a neurotransmitter to work again, what must happen to it each time once it has done its job?
Term
Tissues
Definition
What must an organism have if it has a NS?
Term
Peripheral NS
Central NS
Definition
What are the two parts of the vertebrate Nervous System?
Term
Brain
Spinal Cord
Definition
What are the two parts of the CNS?
Term
Sensory
Motor
Definition
What are the two divisions of the Peripheral NS?
Term
Afferent Neuron
Definition
Term: Sensory Neuron
Term
Efferent Neuron
Definition
Term: Motor Neuron
Term
Autonomic NS
Somatic NS
Definition
What are the two divisions of the motor division of the Peripheral NS?
Term
Sympathetic NS
Parasympathetic NS
Definition
What are the two divisions of the Autonomic NS?
Term
Controls fight or flight response
Definition
What is the function of the Sympathetic NS?
Term
Stimulates digestion and feeling contentment (such as being lazy).
Definition
What is the function of the Parasympathetic NS?
Term
Tracts
Definition
Term: Bundled axons in CNS.
Term
Nerves
Definition
Term: Bundled axons in PNS.
Term
Controls voluntary motor nerves.
Definition
What is the function of the somatic NS of the motor division?
Term
1. Links brain and rest of body
2. Impulse in reflex arcs
Definition
What are the two important functions of the spinal cord?
Term
Cerebrospinal Fluid (CSF)
Definition
Term: Protective liquid barrier in spinal cord.
Term
Cerebrospinal Fluid
Meninges
Definition
What protects the spinal cord?
Term
Pia Mater
Arachnoid
Dura Mater
Definition
What are the three meninges that protect the spinal cord, from inside to outside?
Term
Has blood vessels; nourishes spinal cord
Definition
Describe the Pia mater.
Term
Middle layer protecting spinal cord
Definition
Describe the arachnoid.
Term
Outer layer; toughest, fibrous
Definition
Describe the Dura Mater.
Term
Between vertebrae
Definition
Where do spinal nerves emerge?
Term
Forebrain
Midbrain
Hindbrain
Definition
What are the three divisions of the brain?
Term
Telencephalon
Diencephalon
Definition
What embryonic layers make up the forebrain?
Term
Mesencephalon
Definition
What embryonic layer makes up the midbrain?
Term
Metencephalon
Myelincephalon
Definition
What embryonic layers make up the hindbrain?
Term
Hindbrain
Definition
Which part of the brain connects to the spinal cord?
Term
Medulla Oblongata
Cerebellum
Pons
Definition
What are the parts of the hindbrain?
Term
Reflex center for visceral functions (Breathing, swallowing, cardiovascular function, gastric secretion) and screens info in and out of brain
Definition
What is the function of the medulla oblongata?
Term
Posture, Orientation, and Balance
Definition
What is the function of the Cerebellum?
Term
Aves
Mammals
Definition
The brain is much larger in what classes?
Term
Bridge between cerebrum and cerebellum
Definition
What is the pons?
Term
Coordinates reflex responses to visual, tactile, and auditory input.
Definition
What is the function of the midbrain?
Term
Thalamus
Epithalamus
Hypothalamus
Pituitary Gland
Pineal Gland
Definition
What parts of the forebrain does the diencephalon make up?
Term
No
Definition
Are the Pineal and Pituitary glands part of the brain?
Term
Relay center for sensory information from vision, hearing, touch, etc. (ALL SENSES EXCEPT SMELL)
Definition
What is the function of the Thalamus?
Term
Controls basic drives (hunger, thirst, temperature, sex drive)
Definition
What is the function of the hypothalamus?
Term
Master endocrine gland
Definition
What is the function of the pituitary gland?
Term
Controls body rhythms (such as internal biological clock)
Definition
What is the function of the Pineal Gland?
Term
Cerebrum
Olfactory Lobes
Limbic System
Definition
What parts of the forebrain does the telencephalon form?
Term
Sensory and motor integration; Complex muscle movements; Voluntary thought
Definition
What is the function of the cerebrum?
Term
This is where the one sense that doesn't go to the thalamus, olfaction, is interpreted.
Definition
What is the function of the olfactory bulb?
Term
Controls emotional behavior
Definition
What is the function of the limbic system?
Term
12
Definition
How many cranial nerves are there (in Reptiles, Aves, and Mammals)?
Term
I: Olfactory Nerve
II: Optic Nerve
X: Vagus Nerve
Definition
What are the three important cranial nerves we discussed?
Term
Stimulates Digestion
Definition
What is the function of the Vagus Nerve?
Term
Dilated pupils
Increased heart rate
Definition
What are two ways you can tell the sympathetic NS is in control?
Term
Local Chemical Messengers
Neurotransmitters
Neuropeptides
Hormones
Pheromones
Definition
What are the five types of chemical messengers?
Term
Neurotransmitter
Definition
Term: Chemical used in chemical (NOT electrical) synapses; passed by exocytosis into cleft from vesicles.
Term
Neuropeptide
Definition
Term: Hybrid of neurotransmitter and local chemical messenger.
Term
Hormone
Definition
Term: Chemical made in an endocrine gland; travels through blood to reach target cells.
Term
Pheromone
Definition
Term: Chemical secreted to the exterior to affect behavior of an individual of the same species.
Term
Stimulates metabolism
Definition
What is the function of the hormone Thyroxine?
Term
Hormonal negative feedback
Definition
Term: Effect determined by hormone.
Term
Anterior Lobe
Posterior Lobe
Definition
What are the two parts of the pituitary gland?
Term

Synthesized: Hypothalamus

Stored: Posterior Lobe of Pituitary gland

Definition
Where are Oxytocin and ADH made and stored?
Term
Oxytocin
Anti-Diuretic Hormone (ADH)
Definition
What hormones are stored in the posterior lobe of the pituitary gland?
Term
1. Causes uterine smooth muscle contraction during childbirth
2. Milk let down (Travels to nipples)
Definition
What is the function of the hormone Oxytocin?
Term
Anti-diuretic Hormone
Definition
Term: ADH
Term
Increases water reabsorption in kidney (affects collecting duct most)
Definition
What is the function of the hormone ADH?
Term
FSH
LH
TSH
ACTH
GH
PRL
Definition
What hormones are synthesized and stored in the anterior lobe of the pituitary gland?
Term
Thyroid Stimulating Hormone
Definition
Term: TSH
Term
Adrenal Cortical Tropic Hormone
Definition
Term: ACTH
Term
Growth Hormone
Definition
Term: GH
Term
Prolactin
Definition
Term: PRL
Term
Causes another endocrine gland to release a different hormone.
Definition
What is a tropic hormone?
Term
Stimulates Thyroid gland to release Thyroxin.
Definition
What is the function of TSH?
Term
Stimulates adrenal gland to synthesize cortisol.
Definition
What is the function of ACTH?
Term
Cortisol
Definition
Term: Stress hormone produced by adrenal gland
Term
Stimulates bone and muscle growth
Definition
What is the function of GH?
Term
Stimulates milk production
Definition
What is the function of Prolactin (PRL)?
Term
Thyroxine
Calcitonin
Definition
What two important hormones are secreted by the thyroid gland?
Term
Stimulates digestion of Calcium into bone (opposite of PTH)
Definition
What is the function of Calcitonin?
Term
Parathormone (Parathyroid hormone; PTH)
Definition
What hormone is secreted from the Parathyroid gland?
Term
Regulates Calcium and Phosphorus ion concentration in blood; causes bone to release calcium when blood calcium concentration is low and increases reabsorption of calcium from kidney (opposite of Calcitonin)
Definition
What is the function of Parathormone?
Term
Cortisol
Aldosterone
Estrogen/Testosterone
Definition
What hormones are secreted by the adrenal cortex?
Term
Increases glucose in blood;
Stress hormone
Definition
What is the function of Cortisol?
Term
Increases sodium uptake in kidneys
Definition
What is the function of Aldosterone?
Term
Epinephrine
Norepinephrine
Definition
What hormones are secreted by the adrenal medulla?
Term
Adrenal Cortex
Adrenal Medulla
Definition
What are the two parts of the Adrenal gland?
Term
Increases heart rate and metabolism; also responsible for fight or flight response like the Autonomic NS.
Definition
What is the function of Epinephrine?
Term
Increases heart rate and metabolism
Definition
What is the function of Norepinephrine?
Term
Glucagon
Insulin
Definition
What two hormones does the pancreas secrete?
Term
Alpha Cells of Islets of Langerhans;
Beta Cells of Islets of Langerhans
Definition
What cells in the pancreas secrete Glucagon? Which cells secrete Insulin?
Term
Insulin;
Glucagon
Definition
Which hormone is dominant after eating? Which is dominant after fasting?
Term
Increase glucose in blood
Definition
What is the function of Glucagon?
Term
Increase glucose in tissues/cells
Definition
What is the function of Insulin?
Term
Testosterone
Definition
What hormone do the testes secrete?
Term
Responsible for growth/maintenance of male genitalia, sexual behavior, and secondary sexual characteristics
Definition
What is the function of testosterone?
Term
Relaxin
Estrogins
Progestins
Inhibin
hCG
Definition
What hormones do the ovaries secrete?
Term
Human Corionic Gonadotrophin
Definition
Term: hCG
Term
Softens cervix at birth
Definition
What is the function of Relaxin?
Term
Regulate menstrual cycle and secondary sex characteristics
Definition
What is the function of Estrogins?
Term
Regulate menstrual cycle and placenta development in pregnancy
Definition
What is the function of Progestins?
Term
Progestins
Definition
Which hormone is obtained from ANY birth control?
Term
Inhibits secretion of FSH
Definition
What is the function of Inhibin?
Term
Aids sperm maturation;
Testosterone production
Definition
What is the function of FSH in men?
Term
Stimulates testosterone secretion
Definition
What is the function of LH in men?
Term
Follicle Stimulating Hormone
Definition
Term: FSH
Term
Lutenizing Hormone
Definition
Term: LH
Term
Causes corpus luteum to persist in pregnancy; used in pregnancy tests
Definition
What is the function of hCG?
Term
Trophoblast cells of the uterus
Definition
What synthesizes hCG?
Term
Aquatic;
Terrestrial
Definition
External fertilization mostly takes place in ____ animals, while internal fertilization take place in ___ animals.
Term
Offspring more hardy;
Vigorous offspring
Definition
Name an advantage to sexual reproduction.
Term
Energy spent finding mate;
Energy spent in courtship;
Unfertilized eggs = energy wasted
Definition
Name a disadvantage to sexual reproduction.
Term
Fission
Budding
Fragmentation
Parthenogenesis
Definition
Name the different types of asexual reproduction we studied.
Term
External fertilization
Internal fertilization
Hermaphroditic
Protandry
Definition
Name the different types of sexual reproduction we studied.
Term
Seminiferous Tubules
Definition
What structure within the testes produces sperm?
Term
In the epididymis
(and vas deferens, if epididymis becomes full)
Definition
Where is sperm stored?
Term
Seminal Vesicles
Prostate Gland
Bulbouretheral Gland
Definition
What are the three accessory glands?
Term
Energy source for sperm and a buffer to neutralize vaginal acidity.
Definition
What is the function of the fluid that seminal vesicles secrete?
Term
Buffers vaginal acidity
Definition
What is the function of the fluid secreted by the Prostate?
Term
Slippery lubricant for penetration in sexual intercourse.
Definition
What is the function of the fluid secreted by the bulbouretheral glands?
Term
Gonadotropin-releasing Hormone
Definition
Term: GnRH
Term
Releases LH and FSH
Definition
What is the function of GnRH?
Term
Hypothalamus
Definition
Where is GnRH synthesized?
Term
Sustentacular cells in the testes
[Sertoli cells]
Definition
Where is inhibin in males synthesized?
Term
Leydig Cells
Definition
Where is testosterone synthesized?
Term
Androgens
Definition
Term: Male sex hormones
Term
Testosterone
Definition
Give an example of an androgen.
Term
Upper 1/3 of uterine tubes
Definition
Where does fertilization occur in the human?
Term
Implantation
Definition
Term: Process where, once fertilization occurs, the blastocyst attaches to the uterus.
Term
Serves as birth canal;
Receives sperm;
Responsible for shedding endometrium during period
Definition
What are the functions of the vagina?
Term
Mammary Glands
Definition
What glands produce milk?
Term
Eggs
Estrogen
Progesterone
Definition
What are the three major things ovaries produce?
Term
Primordial Follicle -> Primary Follicle -> Secondary Follicle -> Graafian/Tertiary Follicle -> Corpus Luteum
Definition
What are the stages in the life of a follicle?
Term
Secondary Follicle
Definition
Which follicle is swept by fimbriae of the ovary into the uterine tube to prepare for fertilization?
Term
Beating cilia and peristalsis contractions of the tube
Definition
How does the secondary oocyte move down the uterine tube?
Term
The secondary oocyte and endometrium degenerate.
Definition
What happens if the oocyte is not fertilized?
Term
Smooth Muscle
Elastic Tissue
Skeletal Muscle
Definition
What type of tissues does the vagina have?
Term
Mammary glands
Definition
Term: Modified sweat glands that produce milk.
Term
FALSE
All women have about the same amount of mammary tissue - it's adipose tissue that makes the difference.
Definition
True/False: The amount of mammary tissue determines the size of the breast.
Term
True
Definition
True/False: A female is only fertile a few days a month.
Term
Stimulates thickening of uterine wall, maturation of oocyte and development of female secondary sex characteristics; inhibits FSH secretion; Increases LH secretion
Definition
What is the function of estrogen?
Term
LH
FSH
Estrogen
Definition
1 day before ovulation, what hormones are there peaks of?
Term
Drop in progesterone levels.
Definition
Menstruation is due to what?
Term
Menarch
Definition
Term: Beginning of periods in life.
Term
Menopause
Definition
Term: End of period in woman's life.
Term
Ovaries lose sensitivity to FSH and LH
Definition
Why does menopause occur?
Term
Follicular Phase
Ovarian Phase
Luteal Phase
Definition
What are the three phases of the menstrual cycle?
Term
Follicle matures in the ovary, menstruation (endometrium breaks down), endometrium rebuilds
Definition
What occurs in the Follicular phase of menstruation?
Term
Ovary releases secondary oocyte
Definition
What occurs in the Ovulation phase of menstruation?
Term
Corpus luteum forms; endometrium thickens and becomes glandular
Definition
What occurs during the Luteal phase of menstruation?
Term
Hypothalamus
Definition
Term: Control center of reproductive parts in women.
Term
A high estrogen concentration stimulates the pituitary gland to secrete LH which causes the follicle to grow fast and burst (ovulation)
Definition
What happens on Day 13 of the human ovarian cycle?
Term
For endometrium growth and maintenance for 10-14 days after ovulation.
Definition
Why does the Corpus luteum secrete progesterone and estrogen?
Term
It degenerates and progesterone/estrogen production ends. Without Pro/Est, the endometrium degenerates.
Definition
What happens to the corpus luteum if there is no fertilization?
Term
Endometrium
Cells
Mucus
Blood
Definition
What does the menstrual flow consist of?
Term
hCG
Definition
The cells of the embryo and placenta form what hormone that causes the corpus luteum to remain?
Term
The corpus luteum dies because the placenta begins to produce progesterone over time.
Definition
During pregnancy, what happens to the progesterone production?
Term
hCG
Definition
What hormone has a high concentration in the blood two weeks after pregnancy?
Term
Placenta
Definition
Term: Organ that provides gases, food, and wastes to unborn offspring.
Term
Chorionic Villi
Definition
Term: Fingerlike projections from the blastocyst that contain embryonic blood vessels.
Term
Parturition
Definition
Term: Giving birth
Term
Organic Evolution
Definition
Term: Change of population over time.
Term
Population
Definition
Term: Individuals of same species in ecosystem at same time.
Term
Passing acquired characteristics onto offspring.
Definition
What false idea did Lamarck believe about genetics?
Term
1. All organisms have greater reproductive potential than ever realized in nature.
2. Inherited variations arise from mutations, genetic recombination, and random fertilization.
3. Resources limited, struggle to survive, less adapted die.
4. Adaptive traits increase fitness passed to offspring, nonadaptations seem to be lost.
Definition
What are the 4 parts of the Theory of Evolution by Natural Selection?
Term
Adaptation
Definition
Term: Characteristic that increases an organism's potential to survive and reproduce in a given environment; heritable change in phenotype that increases organism's ability to survive/reproduce.
Term
Microevolution
Definition
Term: Change in allele frequencies in population over time.
Term
Macroevolution
Definition
Term: Large scale change, results in extinction and formation of new species over geological time scales.
Term
Bio-geography
Paleontology
Comparative Anatomy
Molecular and Developmental Biology
Definition
Evidence of macroevolution can be found in what fields of study?
Term
Biome
Definition
Term: A large natural occurring community of organisms and plants occupying a major habitat.
Term
Tundra
Boreal Forest (Taiga)
Temperate Deciduous Forest
Temperate Grasslands
Hot Deserts
Cold Deserts
Chapparal
Thorn Forests/Tropic Savannah
Tropic Deciduous Forest
Tropical Evergreen Forest
Definition
What are the ten major terrestrial biomes?
Term
Tundra
Definition
Biome: High north and south latitudes/elevation, no trees, permafrost, summers cool and short, long winters.
Term
Boreal Forest (Taiga)
Definition
Biome: Lower latitudes/elevation than tundra, evergreens dominate.
Term
Temperate Deciduous Forest
Definition
Biome: Deciduous trees and shrubs dominate.
Term
Temperate Grassland
Definition
Biome: Prairies, less precipitation than Temperate Deciduous Forest, Boreal Forest, and Tundra.
Term
Hot Desert
Definition
Biome: Form at about 30 degrees latitudes, least precipitation, hot/warm all year, animals active at night, dominant plants are succulents
Term
Cold Desert
Definition
Biome: Dry, mid/high latitudes, second driest biome.
Term
Chapparal
Definition
Biome: Hot, dry summers; wet, cool winters; western continents; mid-latitudes
Term
Thorn Forest/Tropic Savannah
Definition
Biome: Low rain in winter, heavier rain in summer, found at lower latitudes than hot deserts
Term
Tropical Deciduous Forest
Definition
Biome: Hot lowlands, high precipitation, tall trees, few succulents
Term
Tropical Evergreen Forest
Definition
Biome: Rich in species, very high (highest) amount of precipitation, warm and rainy all year, lush vegetation, highest diversity, most nutrients in vegetation, not soil.
Term
Deforestation
Definition
Term: Slash and burn agriculture, large environmental problem.
Term
Photic Zone
Aphotic Zone
Definition
What are the two life regions of the ocean?
Term
Photic Zone
Definition
Term: Life region of the ocean where there is enough light for photosynthesis.
Term
Aphotic Zone
Definition
Term: Life region of the ocean where there isn't enough light for photosynthesis.
Term
Coastal Zone
Definition
Term: Region of ocean from shore to edge of continental shelf.
Term
Pelagic Zone
Definition
Term: Region of ocean from offshore to the coastal zone; deep
Term
Intertidal zone
Continental Shelf
Benthic Zone
Definition
What are the three regions of the sea floor?
Term
Continental Shelf
Definition
Term: Region of sea floor that's shallow, has high D.O. concentration, rich diversity (octopus, sea grasses, kelp forests, etc.)
Term
Benthic Zone
Definition
Term: Region of ocean floor from the continental slope to the abyssal plain.
Term
Less than one percent of the original sunlight.
Definition
How much sunlight makes it to the aphotic zone?
Term
They eat decaying organic matter "snow" sinking from above.
Definition
What do organisms in the aphotic zone do for food?
Term
True
Definition
True/False: Coral Reefs have very high diversity.
Term
Bleaching
Definition
Term: Coral reefs dying due to climate change or other factors; coral turns white.
Term
Lakes
Rivers
Definition
Term: Freshwater Ecosystems
Term
Littoral Zone
Definition
Term: Zone near shore of lakes with high diversity
Term
Limnetic Zone
Definition
Term: Zone offshore of lakes where the phytoplankton, zooplankton, and nekton reside.
Term
Phytoplankton
Definition
Term: In lakes, this is the base of the food web.
Term
Zooplankton
Definition
Term: In lakes, these are the intermediate part of the food web.
Term
Nekton
Definition
Term: Large, swimming organisms in water. Ex) Fish
Term
Plankton needs a slow/non-moving water source to reside.
Definition
Why do rivers and streams lack plankton, but are high in benthos?
Term
Estuaries
Definition
Term: Water that has characteristics of both freshwater and marine environments.
Term
Ecology
Definition
Term: Interactions between organisms and their abiotic environment.
Term
Ethology
Definition
Term: Study of animal behavior from an evolutionary perspective.
Term
Proximate Behavior
Definition
Term: Mechanisms that underlie behind neurons, hormones, anatomy.
Term
Ultimate Behavior
Definition
Term: Causes of behavior, selection pressures that shaped its evolution
Term
Stereotypic Behavior
Definition
Term: Unlearned, species specific, always same, inherited.
Term
Web spinning of spiders
Definition
Give an example of a stereotypic behavior.
Term
Behavioral Ecology
Definition
Term: Study of how organisms respond to changes in environment, the select resources they need, response to predators and competitors, and with individuals of same species.
Term
Niche
Definition
Term: Profession of animal in its habitat, how it survives, and where it lives.
Term
Habitat
Definition
Term: Environment/location in which organism lives.
Term
Presence of settled individuals of the same species.
Definition
How do some animals tell if a habitat is a good place to settle or not?
Term
Territory
Definition
Term: Area in which an individual excludes others by advertising that it owns the area and chases away others.
Term
Question: Is the cost (time, energy, etc.) outweighed by the benefit (food found, mate earned, etc.)?
Definition
Describe the Cost-Benefit Appoach.
Term
Energetic Cost
Risk Cost
Opportunity Cost
Definition
What are the three costs of the total cost of the behavior?
Term
Energy of performed behavior - Energy expended at rest.
Definition
Describe the Energetic Cost.
Term
Increased chance of injury/death as a result of behavior/rest needed.
Definition
Describe the Risk Cost.
Term
Sum of benefits animal forfeits by not doing other behaviors during period of time.
Definition
Describe Opportunity Cost.
Term
Foraging Theory
Definition
Term: Theory that predicts how animals select among foods available in an environment.
Term
Optimality Modeling
Definition
Term: Assumes natural selection molds animal behavior so they make the best choices.
Term
1. Time taken to capture/eat prey
2. Amount of energy prey contains
Definition
Cost of prey is determined by what two factors?
Term
Most energy unit/time used
Definition
The most valuable prey yields...?
Term
It may serve as protection
Definition
Why is living in a group as an animal so important?
Term
A family (parents + offspring)
Definition
What is the origin of most animal societies?
Term
Altruism
Definition
Term: Animal sacrifices self for the good of its society.
Term
To improve the fitness of the society as a whole.
Definition
Why does altruism occur?
Term
Close kin, rather than distant relatives.
Definition
Who is an animal more likely to perform altruism for?
Term
Eusocial
Definition
Term: Species with social groups with sterile individuals.
Term
Honey bees
Army ants
Definition
Give an example of a eusocial colony.
Term
Females;
Males
Definition
In eusocial species, fertilized eggs become the __ and unfertilized eggs become the __.
Term
75%
Definition
What is the degree of relatedness between haplodiploidy sisters?
Term
Population
Definition
Term: Individuals of a species in same ecosystem.
Term
Population Density
Definition
Term: Number of individuals per unit area of volume
Term
When individuals survive well and when they don't.
Definition
What do survivorship curves show?
Term
Cohorts
Definition
Term: All individuals born in a time period.
Term
True
Definition
True/False: Species with small individuals have higher population densities.
Term
False
Definition
True/False: Exotic species usually do not reach huge population densities.
Term
In the beginning
Definition
When does the lag phase occur in logistic population growth?
Term
Period of rapid growth
Definition
What is the log phase of logistic population growth?
Term
Stable equilibrium
Definition
What happens at K in the logistic population growth?
Term
K
Definition
Term: Number of individuals in a population that environment can support.
Term
Environmental factors (food, dissolved oxygen, predators, disease, limited space, etc.)
Definition
What is K limited by?
Term
They slowly approach K.
Definition
What happens to population growth rates as K is approached?
Term
r-strategists
K-strategists
Definition
What are the two life strategists?
Term
Instantaneous rate of population increase, no parental care, more offspring, most only reproduce once, short lifespan.
Definition
What is the strategy of an r-strategist?
Term
More parental care, live longer, reproduce more than once.
Definition
What is the strategy of a K-strategist?
Term
Oysters
Definition
Give an example of an r-strategist.
Term
Whale
Human
Elephant
Definition
Give an example of a K-strategist.
Term
Food
Disease
Water
Predators
Definition
What factors are density-dependent?
Term
Hurricanes
Cold snaps
Weather
Definition
What factors are density-independent?
Term
Populations may exist as small groups called subpopulations, which become extinct often.
Definition
Describe subpopulations.
Term
Better sanitation
Better medicine increasing birth rates and decreasing death rates.
Definition
Why has the human population reached almost exponential growth?
Term
Demographic Transition
Definition
Term: Country transitioning from high birth and death rates to low birth and death rates.
Term
Decreased population due to severe drought in wintering grounds in West Africa.
Definition
What happened to the Green Warbler?
Term
Population increased by changes in Eastern Wood: timber harvest ending made more nesting sites.
Definition
What happened to the Blue Tit?
Term
Neurons
Hormones
Definition
What are the two forms the body uses to communicate?
Term
Neurons are electrical signals and faster than hormones;
Hormones are chemical signals that are slower but have a longerresponse
Definition
Describe the difference between neurons and hormones.
Term
Nervous System
Definition
Term: System functioning in communication, integrating and coordinating functions of organs and organ systems.
Term
Neurons
Definition
Term: Cells of the nervous system.
Term
Sensory Neuron
Interneuron
Motor neuron
Definition
What are the three types of neurons?
Term
Sensory Neuron
Definition
Term: Neuron that brings information from a receptor to the CNS.
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