Term
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Definition
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Term
What two types of muscles to segmented worms have? |
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Definition
circular and longitudinal |
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Term
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Definition
bristles used for movement |
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Term
What type of body cavity do segmented worms have? |
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Definition
Coelom – true body cavity |
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Term
What type of circulatory system do segmented worms have? |
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Definition
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Term
What type of digestive system do segmented worms have? |
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Definition
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Term
Segmented worm respiration? |
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Definition
skin, gills, or parapodia |
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Term
How many nephridia are there per segment? |
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Definition
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Term
What type of nervous system do segmented worms have? |
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Definition
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Term
What type of sensory system do segmented worms have? |
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Definition
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Term
What type of reproduction do segmented worms have? |
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Definition
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Term
What is the class of marine worms? |
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Definition
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Term
What is the class of earth worms? |
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Definition
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Term
To what class do leeches belong? |
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Definition
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Term
Where do marine worms live? |
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Definition
Under rocks and in abandoned shells. |
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Term
What do marine worms build? |
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Definition
their own tubes or tunnels |
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Term
What are on the head of a marine worm? |
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Definition
sense organs and paired parapodia (appendages) |
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Term
What do marine worms use to obtain food? |
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Definition
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Term
Marine worms have 5 types of sense organs. What are they? |
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Definition
Eyes Tentacles Sensory palps (antennae) Chemoreceptive cells Statocysts (balance) |
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Term
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Definition
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Term
What is an example of polychaeta (marine worm)? |
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Definition
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Term
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Definition
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Term
What phylum do segmented worms belong to? |
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Definition
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Term
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Definition
Band 1/3 way down an earth worm's body,secretes cocoon |
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Term
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Definition
wave like contractions Circular muscles lengthen Longitudinal muscles shorten |
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Term
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Definition
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Term
Name the 7 parts of the earth worm digestive tract. |
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Definition
Step 1: Mouth Step 2: Pharynx Step 3: Esophagus Step 4: Crop (stores food) Step 5: Gizzard (grinds food) Step 6: Intestine Step 7: Anus |
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Term
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Definition
folding of intestine (creates more surface area) |
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Term
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Definition
secrete calcium ions into the gut to regulate the amount of calcium in the blood |
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Term
How much of the earth worm digestive tract is intestine? |
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Definition
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Term
What does the dorsal blood vessel in an earth worm do? |
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Definition
Returns blood back to the anterior portion |
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Term
Where is the heart found in an earth worm? |
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Definition
over the esophagus (aortic arches) |
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Term
What blood vessel is opposite the dorsal blood vessel in an earth worm? |
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Definition
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Term
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Definition
pigment in earth worm blood |
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Term
How does an earth worm and leech breathe? |
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Definition
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Term
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Definition
Used for excretion in earth worms. There are 2 per segment. |
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Term
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Definition
funnel shaped organ (receives waste) |
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Term
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Definition
surround blood vessels (remove waste from blood) |
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Term
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Definition
opening to exterior through which waste passes |
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Term
What does an earth worm produce as waste? |
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Definition
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Term
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Definition
Regulation of water and salt using the skin and nephridia |
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Term
What segment is the brain in in an earth worm? |
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Definition
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Term
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Definition
masses of tissue containing nerve cells |
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Term
What kind of receptors do earth worms have in their skin? |
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Definition
photoreceptors and chemoreceptors |
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Term
Can earth worms and leeches sense touch? |
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Definition
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Term
Where are earth worm eggs fertilized? |
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Definition
In a cocoon, smaller than a grain of rice. |
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Term
What class do leeches belong to? |
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Definition
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Term
How many suckers and brains do leeches have? |
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Definition
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Term
Where are the suckers and brains on leeches located? |
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Definition
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Term
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Definition
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Term
What are the parts of a leech's digestive tract? |
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Definition
mouth, proboscis, intestine, cecum, anus |
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Term
Are leeches monoecious or dioecious or both? |
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Definition
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