In evolution, the study of vertebrate forelimbs is related to _______ evidence.

Fill in the blank(s) with the appropriate word(s).


Ans: anatomical

Biology & Microbiology

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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.

Biology & Microbiology

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

Biology & Microbiology

Where is phloem sap moved to?

a. to the root system b. to sinks c. to the shoot system d. to sources

Biology & Microbiology

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.

Biology & Microbiology