If within a large population no mutations occur, no migration occurs, all mating is random, and each individual has an equal chance of reproducing, which of the following will probably happen?
A) A bottleneck will occur.
B) A change in allele frequency will lead to rapid evolution.
C) No evolution will occur.
D) Extinction will occur.
Answer: C
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Which of the following best describes why ice was used during this experiment?
a. To increase the activity of the enzyme b. To retard the breakdown of the catalase c. To purge the solution of excess air trapped during blending d. To slow the catalase molecules to increase the probability of contact with the hydrogen peroxide molecules e. To increase the size of the active site on the enzyme
Which of the following types of radiation is nonionizing and has the shortest wavelength?
A) ultraviolet light B) infrared radiation C) microwaves D) X rays E) gamma rays
Which of the following allows materials to diffuse
into body cells and allows organs to grow larger and move more freely? a. a coelom b. mesoderm c. a mantle d. a water-vascular system e. a saclike gut
What type of chromosome structure is commonly found in hyperthermophiles?
What will be an ideal response?