Organisms that are nocturnal are more likely to communicate using
A) sight and sound.
B) sight and smell.
C) smell and sound.
D) touch and taste.
Answer: C
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Females choosing males with elongated
eyestalks over those with short eyestalks is an example of
a. directional selection. b. disruptive selection. c. dominance. d. a sexual handicap. e. sexual selection
Which of the following is in the correct order from the most general to the most specific?
A) Kingdom-phylum-class-order-family-genus-species B) Kingdom-class-order-family-phylum-genus-species C) Species-genus-family-order-class-phylum-kingdom D) Species-genus-phylum-family-order-class-kingdom E) Phylum-kingdom-class-order-genus-family-species
Which two main classes exist for oxygenases?
a. aerobic oxygenases and anaerobic oxygenases b. dioxygenases and monooxygenases c. dioxygenases and tetraoxygenases d. cis-oxygenases and trans-oxygenases
Bacterial and archaeal ribosomes are known as ________ ribosomes, based on their sedimentation coefficient.
A. 70S B. 50S C. 30S D. 80S