Which of the following is an example of feeding behavior that has a high energy intake to effort ratio?

a) human children eating dirt
b) crabs eating mussels that are intermediate in size
c) geese retrieving the largest egg-like object near their nests
d) a monkey reaching over a snake to get a peanut
e) vampire bats sharing blood meals with non-relatives


Ans: b) crabs eating mussels that are intermediate in size

Biology & Microbiology

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Discuss the similarities and differences between immunodiffusion and immunochromatographic assays

What will be an ideal response?

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Under the conditions known as El Niño, the inorganic nutrient content of the seawater off the coast of Peru declines to very low levels. What effect will this likely have on marine life in the area?

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All of the following pertain to HIV, except

A. it attaches primarily to host cells with CD4 receptors. B. the viral DNA integrates into the host nucleus. C. it can enter into nervous tissues and cause abnormalities. D. it causes Kaposi sarcoma. E. it has reverse transcriptase.

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