Which phylum includes members that have radial symmetry and nematocysts, and may have polyp or medusa forms (or both) as adults?
a. Rotifera
b. Cnidaria
c. Porifera
d. Nematoda
Ans: b. Cnidaria
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Scientists found that different beak shapes correlate with different mating songs in Darwin's finches. Which hypothesis does this support?
A. Darwin's finches are not different species according to the Biological Species Concept. B. Adaptation to different food sources led to behavioral isolation in Darwin's finches. C. Mating songs are primarily determined by the acoustics of different beaks. D. Adaptation to different food sources likely occurred after reproductive isolation in Darwin's finches. 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 reproductive isolation? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
A metabolic pathway that is both anabolic and catabolic is a(n)
A) amphibolic pathway B) constructive pathway C) antagonistic pathway D) glycolytic pathway
Which of the following would be a characteristic of a K-selected species?
A) Individuals tend to die at all ages in the life span. B) Most die at relatively young ages. C) All K-selected species live very long life spans. D) Most K-selected species live until older age.
Which statement is not true about viral warts?
A) Warts result from abnormal cell growth and so are highly likely to become cancerous. B) Warts can be removed but may return later. C) Plantar warts are found on the feet. D) Warts can spread from one part of the body to another via autoinoculation. E) Papillomaviruses are the cause of many warts.