An individual's ABO blood type is determined by the presence of particular antigens on the white blood cell surfaces.

a. true
b. false


Answer: b. false

Biology & Microbiology

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Humans follow which type of survivorship curve?

a. Type I b. Type II c. Type III d. Type IV

Biology & Microbiology

Measurements of bill length in a population of seed-eating birds reveals two distinct groups: small-billed individuals feeding on soft-shelled seeds and large-billed individuals feeding on hard-shelled seeds

This bimodal distribution most likely resulted from A) stabilizing selection. B) natural selection. C) directional selection. D) disruptive selection.

Biology & Microbiology

In the process of initiation, RNA polymerase and several regulatory proteins bind to a(n) ____________________ that

marks the beginning of a gen Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The end products of the citric acid cycle include all of the following except

A) CO2. B) pyruvate. C) ATP. D) FADH2.

Biology & Microbiology