Which hypothesis was rejected by the evidence from radiometric dating of nonfossil rocks?
A) static hypothesis
B) transformation hypothesis
C) separate type hypothesis
D) common descent hypothesis
A
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Male hummingbirds flash a patch of iridescent feathers on their neck called the gorget. This behavior makes them very visible. Why advertise their presence to a predator?
A. Hummingbirds are so fast that predation is not a large factor for them. B. Predators cannot see colors so are not alerted. C. The benefits of defending a territory exceed the costs of predation. D. This is an example of a maladaptive behavior that decreases overall fitness. 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 tradeoff of being visible to potential mates and predators? What other information is related to the question? Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection: 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?
Coral reefs, atolls, and islands are the result of the buildup of coral
a. polyps. b. medusae. c. exoskeletons. d. wastes.
Which of these factors is NOT used in classifying viruses?
A. Disease symptoms B. Host range C. Morphology D. Genome
Which of the following terms refers to a reversible change in the normal shape, size, and organization of tissue cells?
A) metaplasia B) metastasis C) dysplasia D) anaplasia E) inflammation