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8 Cards in this Set
- Front
- Back
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All skeletal systems provide support to organisms but only two types are hard. Which lists the two hard skeletons?
a. exoskeletons and hydrostatic skeleton B. Exoskeletons and endoskeleton's c. endoskeleton's and hydrostatic skeleton d. exoskeletons and shells |
B |
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go to page 3 of your study guide and do question number 12 answer is on the back |
C |
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go to page 3 of your study guide and do question number 14. Answer is on the back |
A |
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which of the following is true of the of a closed circulatory system but not an open one?
A. Muscles help move blood B. It takes oxygen and nutrients to the organs that need them C. Carbon dioxide and other waste are taken up by the blood for removal D. Materials are transported through blood using vessels |
D |
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fill in the blank; A planarian is an example of an animal with _________ symmetry |
bilateral |
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fill in the blank: _________ is it wavelike motion the most animals forward without using legs |
undulation |
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organs a change of oxygen and carbon dioxide in water |
gills |
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opening and abdomen for gas exchange |
spiracles |
