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Biology
Bio 1010
71
Biology
Undergraduate 1
04/14/2009

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Term
Habituation
Definition
An animal ignores a stimulus to which it is subjected continually
Term
Association
Definition
An animal learns that a particular outcome is connected with a particular stimulus
Term
Classical conditioning
Definition
A new stimulus is presented in combination with a natural stimulus. The animal transfers its response from the natural stimulus to the new stimulus
Term
Operant (instrumental) conditioning
Definition
An animal responds to a new stimulus. It is rewarded or punished following its respose. Eventually, the animal associates the reward of punishment with the stimulus and responds appropriately to the stimulus.
Term
Observational learning (imitation)
Definition
An animal imitates the behaviors of others.
Term
Exploratory learning
Definition
An animal moves through and observes the elements of its environment
Term
Imprinting
Definition
An animal learns specific, predetermined activity at a specific time in life
Term
Insight
Definition
An animal understands the connection betwen things it had no way of experiencing previously
Term
Animal Migration
Definition
Movement of living beings from one place to another and back
Term
Feeding behavior
Definition
Develop search image. Make a picture in their mind of what they will hunt. get most food at least expense
Term
Social behavior
Definition
Any kind of interaction between 2 or more living things
Term
Dominance Hiearchy
Definition
also known as peck order. group knows his is number 1,2,3 in a group
Term
Territorial behavior
Definition
area individuals defend. area has all resources to attract mate and raise young. Females pick best male to produce with. contains best resources
Term
Mating behavior
Definition
cortship behavior cortship rituals to calm male bird down. also to make sure breeding with right species. providing organization
Term
Natural selection, due to environment
Definition
life must adapt to environment for survival
Term
Natural selection bottleneck effect
Definition
only a few organisms make it through.
Survivors breed and strong survive
Offspring will have surviving genetics
Term
Natural selection founder effect
Definition
species ends up in a different location and founding population gives genetics to offspring
Term
Natural selection survival
Definition
Favor the average
Term
Directional selection survival
Definition
one extreme of the others is not good
Term
Diversifying selection survival
Definition
Situation in which average is bad, both extremes are good.
Term
Carolus Linnaes
Definition
Binomial Nomenclature- Classified living things by two latin words
Term
Fungi
Definition
Heterotrophs, classified by means of reproduction. act as decomposers in the world
Term
Zygomycetes
Definition
black bread mold
Term
Sac Fungi
Definition
Morels, Chestnut Blight, Dutch elm disease
Term
Club Fungi
Definition
Classic mushrooms
Term
Lichens
Definition
consists of two different organisms. needs each other to survive
Green algae- photosynthesizes, sugar for fungus
Fungus- Provides shade for algae
Term
Plant Kingdom
Definition
Contains Vascular Tissue
Xylem: moves water
Phloem: Moves sugar
Term
Cuticle
Definition
Waxy covering on outside of plant. water cannot escape plant
Term
Bryophytes
Definition
mosses, don not have cuticle or vascular tissue.
only found in moist, marshy places
Term
Vascular plants
Definition
can grow tall due to vascular tissue
a) seedless vascular plants, ferns, horsetails
b)seed vascular plants
i)gymnosperms naked seed. seeds are not endosed in a fruit pinecones.
conifers
ii)angiosperms, contained seed
Term
Invertebrates
Definition
no internal support structure 97%
Term
Vertebrates
Definition
internal support structure (bone or cartlidge) 3%
Term
Porifera
Definition
Sponges, simplest animals, Filters food. no tissues, bunch of cells
Term
Nettles
Definition
Jelly fish, have tissues, all have tentacles and inject nerve poison
Term
Flat worms
Definition
tape worms, flat worms, first to have head like structure
Term
Round worms
Definition
3D structure, body cavity for organs. pinworms
Term
Mollusca
Definition
Soft-bodied animal, fist to have a circulatory system, second largest animal group live in shells..
Term
Gastropods
Definition
snails and slugs
Term
Bivalves
Definition
clams, muscles
Term
Cephalopods
Definition
squid, octopus, relies on moving fast
mantle-membrane that produces shell
Term
Segmented worms
Definition
earthworms, has segments. precursors to feet, leeches
Term
Arthropods
Definition
Joint footed, invented feet, most species of anything else, exoskeleton made of chitin
Term
Arthropods-Arachnids
Definition
scorpions, spiders, ticks, and mites suck body fluids from prey
Term
C
Definition
Term
Arthropods-Crustacea
Definition
all except 1 are aquatic. lobster, crab, shrimp, crawdads. pillbugs
Term
Arthropods-Insects
Definition
Bugs, classic insects
Term
Arthropods-Millipedes
Definition
Centipedes
Term
Arthropods-Horshoe crabs
Definition
living possbile, identical forms, compared to millions of years ago
Term
Evolution
Definition
Is a change in the frequency of genetically determined characteristics within a population over time.
Term
Microeveolution
Definition
occurs when there are minor differences in allele frequency between populations of the same species, as when scientists examine genetic differences between subspecies
Term
Macroevolution
Definition
occurs when there are major differences that have occurred over long periods that have resulted in so much genetic change that new kinds of species are produced
Term
Acquired characteristics
Definition
are traits gained during an organism's life and not determined genetically.
Term
Charles Darwin and Alfred Wallace
Definition
Suggested the theory of Natural Selection
Natural Selection- the idea that some individuals whose genetic combinations favor life in their surroundings are more likely to survive, reproduce, and pass on their genes to the next generation than are individuals who have unfavorable genetic combinations.
Term
aesexual-Fragmentation
Definition
animal splits into 2
ex. flatworms, sea stars
Term
aexexual-Budding
Definition
new individual arises as an outgrowth
ex. hydra
Term
aesexual-Parthenogenesis
Definition
insect lays egg, unfertilized, that develops into an adult
ex. bees, insects
Term
sexual- External fertilization
Definition
dropping sperm and egg off
ex. fishes, insects, female will drop a whole bunch of eggs and males drop a whold bunch of sperm in same spot. Hopefully some adults come out of it, sometimes doesnt work-eggs are eaten, current takes them off, takes LOTS of ENERGY
Term
sexual-Internal fertilization
Definition
sperm and egg are together when dropped
ex. greatly improves probability fertilization output, reptiles first started this. Offspring remains in female until it is born.
Term
Spontaneous mutations
Definition
changes in DNA that cannot be tied to a particular factor
Term
Sexual selection
Definition
occurs within animal populations when some individuals are chosen as mates more frequently than others.
Term
Stabilizing selection
Definition
occurs when individuals at the extremes of the range of a characteristic are consistently selected against
Term
Directional selection
Definition
occurs when individuals at one extreme of the range of a characteristic are consistently selected for
Term
Gene flow
Definition
the movement of genes from one generation to the next as a result of reproduction or from one region to another by migration.
Term
Genetic divergence
Definition
necessary for new species to develop
Term
Polyploidy
Definition
a condition of having multiple sets of chromosomes, rather than the normal haploid or diploid number
Term
ecological isolating mechanisms
Definition
occur when two species do not have the opportunity to interbreed because they typically live indifferent ecologiecal settings.
Term
seasonal isolating mechanisms
Definition
are effective genetic isolating mechanisms. (differences in the time of year at which reproduction takes place)
Term
Behavioral isolaing mechanisms
Definition
occur when inborn behavior patterns prevent breeding between species
Term
morphological isolating mechanisms
Definition
involve differences in the structure of organisms.
Term
Biochemical isolating mechanisms
Definition
occur when molecular incompatibility prevents successful mating
Term
Hybrid inviability, infertility mechanisms
Definition
prevent the offspring of two diferent species from continuing to reproduce
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