Name one potential direct and one potential indirect benefit that females may receive from a particular mate choice
What will be an ideal response?
ANS:
Direct: energy and nutrients from a nuptial gift; Indirect: "good genes" for parasite re-sistance in their offspring
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Three of the four answers listed below are parts of a common molecule. Select the exception
a. phosphate group b. adenine c. deoxyribose d. ribose
In general, mothers typically make a larger parental investment in each offspring than males do. What is meant by the term parental investment?
What will be an ideal response?
Which is a characteristic of all annelids?
a. They have a visceral mass. b. They have a segmented body. c. They move with a muscular foot. d. They surround their body with a mantle. e. They have an open circulatory system.
The accompanying figure models a(n) __________-shaped growth curve
a. J b. S c. r d. K e. b