Microbial control methods that kill _____ are able to sterilize.
A) viruses
B) Bacillus
C) endospores
D) cysts
E) none of the above
Ans: C) endospores
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Evolution _____________. (Mark true (t) or false (f) for each statement.)
____ is a change in allele or genotype frequency over time ____ always results in a visible change in the physical characteristics of an organism ____ is a process that takes many, many generations ____ is only seen in unicellular organisms ____ is a natural phenomenon that is outside the influence of humans ____ can only occur in the natural environment ____ is not seen in domesticated animals ____ always results in an increase in an organism's fitness ____ is inherently random in nature ____ acts on animals but not plants What will be an ideal response?
Genetic discoveries made in one organism cannot necessarily be applied to other species
a. True b. False Indicate whether the statement is true or false
Which of the following plant adaptations is shared by seedless vascular plants, gymnosperms and angiosperms?
A. Seeds B. Flowers C. Vascular tissue D. Seedless vascular plants, gymnosperms and angiosperms do not share any plant adaptations.
Many male birds will expend a great deal of
energy building nests. Females will mate with the males who build the best nests. This is best described as an example of
a. natural selection. b. sexual selection. c. runaway selection. d. the Red Queen effect. e. disruptive selection