Figure 34.4A
Use the posterior pituitary function illustration above to answer the following question.
The releasing site for the hormones of this figure is indicated by the letter ____.
A. A
B. B
C. C
D. D
E. E
Answer: C
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Which of the following statements is correct?
A. None of the answer options is correct. B. The posterior pituitary gland develops from epithelial cells. C. Both the anterior and posterior pituitary glands release tropic hormones. D. Neurosecretory cells of the hypothalamus extend axons to the anterior pituitary gland. E. The posterior pituitary gland produces more types of hormones than the anterior pituitary gland.
Gregor Mendel: Check all that apply.
_____ carried out his experiments in an abbey garden. _____ was a monk. _____ conducted research that proved that the "blending hypothesis" was the correct explanation of how heredity worked. _____ carried out his experiments on heredity by doing thousands of genetic crosses on a common garden plant. _____ discovered the basic principles of hereditary.
In 1998, researchers found that genes similar to the Drosophila gene tinman are necessary for heart development in vertebrates. What can you conclude about the ancient bilaterian ancestor of insects and vertebrates over 500 million years ago?
A. The fly species that eventually gave rise to vertebrates used tinman to make a heart. B. Something about heart development requires a gene to have a tinman-like sequence, but the vertebrate and invertebrate genes arose by convergent evolution -- so the ancestor had a similar but not homologous gene. C. The ancient ancestor lacked a heart, but already had a tinman-like gene. D. The ancestor had a heart-like structure that was specified by a tinman-like gene. 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 the tinman gene? 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?
Birds are different from reptiles in all of the following features except
A. bipedalism. B. the presence of feathers. C. endothermy. D. the presence of a flight skeleton. E. their lack of teeth.