If there is no gene flow, the curve shifts to the left or to the right, and the population size consequently increases over successive generations, which of the following is most likely occurring?

A) immigration or emigration
B) directional selection
C) disruptive selection
D) genetic drift


B

Biology & Microbiology

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The regulatory site in an allosteric enzyme is found within the catalytic site.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The neurotransmitter serotonin performs all of the following functions EXCEPT

a. helps control sleep b. is involved with sensory perception c. regulates body temperature d. helps control emotional states e. speed up heart rate

Biology & Microbiology

In humans, helminths generally infect the ________.

A. nervous system
B. urinary tract
C. gastrointestinal tract
D. skin
E. muscular system

Biology & Microbiology

What is the name of the frigid ecosystem bordering the North Pole?

A. prairies B. taiga C. coniferous forests D. temperate forests E. tundra

Biology & Microbiology