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