In _____ selection, individuals intermediate in a phenotypic distribution have greater reproductive success.

A. stabilizing
B. directional
C. disruptive
D. balancing
E. negative frequency-dependent


A. stabilizing

Biology & Microbiology

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Amino acids are linked by what kind of bonds

to form the primary structure of a protein? a. disulfide b. hydrogen c. ionic d. peptide e. none of these

Biology & Microbiology

Convergent evolution gives rise to analogous structures in unrelated taxa

a. true b. false

Biology & Microbiology

Restriction Enzymes. What do they do?

What will be an ideal response?

Biology & Microbiology

In the 1920s, Aleksander Oparin and John Haldane each made independent proposals about the formation of life on Earth. What did they say about essential organic molecules?

a. that these could not have been made in the absence of life in the conditions on primordial Earth b. that these could have been made in the presence of life in the conditions on primordial Earth c. that these could have been made in the absence of life in the conditions on primordial Earth d. that these could have been made in t

Biology & Microbiology