Which describes genetic information prior to the beginning of mitosis?
A. centrioles
B. chromatin
C. centromere
D. chromosomes
Ans: B. chromatin
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The male sex hormone testosterone is secreted in response to a hormone secreted by the _____
a. testes c. pituitary gland b. ovaries d. pancreas
Active transport may be described as all of the following EXCEPT
a. is concerned with establishing the resting potential of a neuron. b. counters the process of diffusion. c. allows transport of atoms across the plasma membrane of the neuron against the concentration gradient. d. uses energy to power transport. e. physically blocking transport.
During which stage of wastewater treatment are methanogenic microbes most important?
A) Primary treatment B) Secondary treatment C) Disinfection D) Sludge digestion E) Biological oxidation
TEM provides a thin, two-dimensional section of the object being studied.
a. true b. false