In general, what hormone is produced in greater quantities in males that allows them to have a greater muscle mass than females?
A) adrenaline
B) testosterone
C) estrogen
D) growth hormone
B
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The polytene chromosomes of Drosophila are an example of _________
A. aneuploidy B. polyploidy C. translocations D. inversion loops E. None of the answers are correct
Which of these characteristics is NOT found in the amphibians?
A. two-chambered heart B. small inefficient lungs C. thin moist skin D. eggs with gelatinous covering E. aquatic larvae
The ability of retroviruses to induce tumors is related to which enzyme?
a) Reverse transcriptase b) RNA polymerase c) DNA polymerase d) Protease
Foraging bees communicate with other bees in a waggle dance to give information about the food. The important cue in the dance that conveys information about the required flight direction to the food source relative to the hive-sun direction is the
A. angle between the waggle run and the vertical axis within the hive. B. angle between the waggle run in reference to the hive-sun angle. C. angle between the food source and the hive in reference to the sun. D. speed of the waggle dance. E. angle between the waggle run in reference to the direction north from the hive.