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

Biology & Microbiology

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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?  

Biology & Microbiology

Coral reefs, atolls, and islands are the result of the buildup of coral

a. polyps. b. medusae. c. exoskeletons. d. wastes.

Biology & Microbiology

Which of these factors is NOT used in classifying viruses?

A. Disease symptoms B. Host range C. Morphology D. Genome

Biology & Microbiology

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

Biology & Microbiology