Why is there a correlation between testis size and sperm competition in beetles?
What will be an ideal response?
ANS:
Testis size tends to be correlated with the amount of sperm per copulation. Increasing sperm number is a common strategy of sperm competition
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Paired, fleshy extensions of the body wall in bristle worms that are used for locomotion and gas exchange are called
____.
a. metanephridia b. parapodia c. septa d. clitella e. setae
Which of the following is a type of RNA?
a. mRNA b. fRNA c. sRNA d. dRNA
Human female germ cells form ____
a. before birth b. shortly after birth c. at puberty d. during late teenage-hood e. at fertilization
Which of the following is true about high protein
diets? a. They produce nitrogen-rich breakdown products b. They force the kidneys to work overtime. c. They increase the risk of kidney stones. d. Adherents need to drink plenty of water. e. All of these are true.