How did the control group differ from the
experimental group in the butterfly
experiment?
a. They were different species.
b. Their native habitat area of the forest
differed.
c. They tasted worse.
d. They were white-patterned.
e. They preferred different flower species.
D
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The following are all similarities between sirenians and whales except:
a. streamlined, practically hairless bodies. b. forelimbs modified to form flippers. c. tail flukes. d. diet of macrophytes.
Which of the following organs serves as a transition between the pharynx and the trachea?
a. nasal cavity b. bronchi c. larynx d. alveoli
What is the most inclusive level of life's organization?
a. a niche b. the biosphere c. a population d. an ecosystem e. a community
Which structure is least likely to fossilize?
a. bone b. teeth c. seeds d. shells e. skin