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100
What are the 6 main groups that all invertebrates belong to?
What is:Arthropods, cnidarians, echinoderms, mollusks, segmented worms and sponges.
100
What is Metamorphosis?
Metamorphosis is a change in the form from one stage in an organisms life to another stage.
100
What are the 4 traits that all invertebrates share?
-They do not have a backbone -They are multi-cellular -They have no cell walls -They are endotherms
100
What is an exoskeleton?
An external covering or shell.
200
About what percent of animals are invertebrates?
About 95% are invertebrates.
200
Why are insects classified as invertebrates?
Insects have no backbone and an exoskeleton.
300
What is the major difference between vertebrates and invertebrates?
Vertebrates have spinal columns and invertebrates do not.
300
What is an ectotherm?
An animal that depends on body heat from outside sources. (A cold blooded animal.)
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