The long snout of the giant anteater, Myrmecophaga tridactyla, of South America, and the echidna, Tachyglossus aculeatus, of Australia, are animals of different evolutionary lineages that are both adapted to eating ants. This is an example of
A. Both analogous traits and artificial selection are correct.
B. anatomical homology.
C. selective breeding.
D. artificial selection.
E. analogous traits.
Answer: E
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Which cell organelle is responsible for producing the color of human skin?
a. Chloroplast b. Melanosomes c. Mitochondria d. Melanin e. Nucleus
The mollusk group that includes the fastest, largest,
and smartest invertebrates is the a. chitons. b. cephalopods. c. gastropods. d. bivalves. e. nudibranchs.
The plant hormone that promotes dormancy in some
plants and seeds is a. abscisic acid. b. auxin. c. gibberellin. d. ethylene. e. none of these.
Which of the following shows seasonal isolation?
A. Frogs mate in the spring and deer mate in the fall. B. The pollen of different species of pine trees mature at different times. C. The tulips bloom earlier in Tennessee than in New York. D. None of these answers is correct.