Derived character states shared by clade members are called
A. symplesiomorphies.
B. ancestral traits.
C. homoplasies.
D. plesiomorphies.
E. synapomorphies.
Answer: E
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Sympatric speciation often occurs in animals through polyploidy
Indicate whether the statement is true or false.
Most pinnipeds mate:
a. every two years. b. every four years. c. once in their lifetime. d. annually. e. every three years.
Susie just squished a cockroach and its pale yellow hemolymph squirted out on the floor. If Susie analyzed the hemolymph, she would expect to find all of the following EXCEPT
A. sugars. B. water. C. ions. D. erythrocytes. E. amino acids. F. cells that protect against foreign microbes. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about hemolymph? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
How do the anterior and posterior pituitary
glands differ?
a. the anterior pituitary produces peptide hormones while the posterior pituitary produces steroid hormones b. the anterior pituitary produces its own hormones but the posterior pituitary doesn’t c. the anterior pituitary is a part of the nervous system; the posterior pituitary is a part of the endocrine system d. the anterior pituitary is controlled by the hypothalamus whereas the posterior pituitary is controlled by the adrenal cortex e. the anterior pituitary is under voluntary control; the posterior pituitary is under involuntary control