If a virus is latent, it
A. has not entered a lysogenic cycle.
B. is not actively replicating.
C. cannot be a retrovirus.
D. is easy to develop immunity against it.
E. is gaining a new envelope via "budding."
Answer: B
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Which of the following is a greenhouse gas?
A. water vapor B. molecular oxygen C. molecular nitrogen D. argon E. carbon monoxide
Four of the five statements listed below are
related to the second law of thermodynamics. Select the EXCEPTION.
a. There is an increased state of disorder. b. Energy can be neither created nor destroyed. c. The amount of available energy in a closed system declines with time. d. Energy is lost as it is transferred or transformed to another form. e. Spontaneous flow of energy from high- to low-quantity forms occurs
Which of the following is NOT one of the factors
contributing to the high cost of sexual reproduction? a. development and maintenance of specialized reproductive structures b. formation and nourishment of gametes c. maintaining reproductive timing mechanisms d. maintaining body cells e. protection and nourishment of offspring
The difference between geographic isolation and habitat differentiation (isolation) is the _____
A) relative locations of two populations as speciation occurs B) speed (tempo) at which two populations undergo speciation C) amount of genetic variation that occurs among two gene pools as speciation occurs D) identity of the phylogenetic kingdom or domain in which these phenomena occur