At __________, the fusion of two gametes produces a(n) __________.
Fill in the blank(s) with the appropriate word(s).
fertilization; zygote
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Why is intelligent design not a scientific explanation for the wide variety of life on Earth?
a. It suggests that evolution is “just a theory.” b. It says that evolution can explain the origins of life on Earth. c. It suggests that individuals can evolve on purpose. d. It posits that an unknown or supernatural force created life, and thus cannot be measured.
Which of the following microscopes has the strongest resolving power?
A. phase-contrast microscope B. compound microscope C. transmission electron microscope D. dark-field microscope
Researchers studying an endangered lizard species find a successful population of the lizard in a certain area. The researchers determine that this population has reproduced primarily through parthenogenesis. What are the researchers likely to recommend to conservation officials who are trying to protect the species?
a) move the successful population to a different area where lizard populations are struggling b) remove all lizards from the wild and place them in a captive breeding program c) remove as many predators as possible from the area with the successful population d) try to prevent changes to the environment in the area with the successful population
Some flowering plants cannot self-pollinate which increases their tendency to mate with phenotypically different mates, a process called disassortative mating. What effect would this have on a population in Hardy-Weinberg equilibrium?
A. A decrease in heterozygotes would be observed. B. No change homozygotes or heterozygotes would be observed. C. The population would remain in Hardy-Weinberg equilibrium. D. An increase in heterozygotes would be observed. E. An increase in homozygotes would be observed.