Gene flow is the
A) migration of individuals between populations.
B) transfer of genes within a population.
C) variation of alleles within a population.
D) movement of alleles between populations.
D) movement of alleles between populations.
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Agar
A. is a useful nutrient source for most bacteria. B. is a hydrolysate of proteins. C. stays liquid through the typical range of incubation temperatures. D. has chemical and physical properties that make it almost ideal for solidifying media.
Diffusion is an example of ________
A) phagocytosis B) active transport C) endocytosis D) passive transport
Which of the following is considered a new emerging infectious disease?
A. Polio B. Malaria C. Cholera D. SARS E. Smallpox
What unusual feature do you find in connective tissues?
A) extracellular material called the ground substance B) conductive cells C) cells with the ability to contract D) glandular secretions