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studysatack #3
| Term | Definition |
|---|---|
| adaptation | a behavior or physical characteristic that allows an organism to survive |
| fertilization | the joining of a sperm and a egg |
| vertebrate | the small bones that make up the back |
| invertebrate | an animal that does not have a back bone |
| bilateral symmetry | body plan with two halves that are mirror images |
| radial symmetry | the quality of having having many lines that pass through the central point |
| larva | the immature form of a animal that looks very diffrent form the parent |
| cnidarian | an invertebrate animal that uses stinging cells to capture food and portect itself |
| polyp | the cnidarian body plan is characterized by a vaselike shape and that usally adapted for a life attached to an underwater surface |
| medusa | the cnidarian body plan having a bowl shape and adapted for a free-swimming life |
| parasite | the organism that benefits by living on or in a host |
| host | the organism that a that a parasite or a virus lives in or on |
| scavenger | a organism the has to go and find its own food |
| closed circulatory system | a system where blood is pumped by a heart through the vessels |
| mollusk | soft body invertebrate usually in a shell |
| open circulatory system | a system where blood is pumped by a heart into the body cavities |
| gill | a part on a fish used for obtaining oxygen |
| gastropod | The largest, most diverse phylum of mollusks |
| cephalopod | the phylum of mollusks with bilateral symmetry such as an octopus |
| bivalve | a mollusk with two shells |
| herbivore | a organism that never eats meat |
| carnivore | a organism that only eats meat |
| omnivore | a organism that eats both veggies and meat |
| radula | tiny teeth that help obtain food |
| arthrodpod | an invertebrate with an exoskeleton and a segmented body |
| exoseleton | a skelton on the outside |
| molting | the shedding of a out grown exoskelton |
| crustacean | a large group of arthropods with and exoskeleton such as a lobster |
| complete metamorphosis | is like a butter fly growing up |
| gradual metamorphosis | like a grass hopper growing up |
| arachnid | a class of joint-legged invertebrates |
| insect | a class of invertebrates within the arthropod phylum with three pairs of jointed legs |
| thorax | An arthropods mid section where its wings and legs are attached |
| pupa | the stage where the butter fly is in the cacoon |
| nymph | an immature form of an animal |
| echinoderm | invertebrates with spiny skin |
| endoskeleton | a skelton on the inside |
| water vascular system | a system used by echinoderms |
Created by:
kasey.crossley
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