In evolution, the study of vertebrate forelimbs is related to _______ evidence.
Fill in the blank(s) with the appropriate word(s).
Ans: anatomical
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In addition to their characteristic cilia, most ciliates contain two types of
A. nuclei. B. chloroplasts. C. flagella. D. wood-digesting enzymes. E. cysts.
Crabs and terrapins have a _____ impact on snail populations while snails have a _____ impact on
cordgrass populations and terrapins have a _____ impact on cordgrass populations.
a. negative; negative; negative b. negative; negative; positive c. negative; positive; negative d. positive; negative; positive e. positive; positive; positive
Where is phloem sap moved to?
a. to the root system b. to sinks c. to the shoot system d. to sources
Female finches, which do not sing, often choose to mate with males that sing a specific, elaborate song. This is an example of
A) fitness. B) assortative mating. C) inbreeding. D) coevolution. E) sexual selection.