__________ occurs at step C

a. Fertilization
b. Mitosis
c. Meiosis
d. Zygote formation


C

Biology & Microbiology

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In a prokaryotic operon, the region to which RNA polymerase binds is called

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At the end of metaphase I, separate

a. homologous chromosomes b. haploid chromatids c. sister chromatids d. centrioles e. germ cells

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Sponges are very interesting animals. Although they do not have true tissues, they have a number of cooperating cell types. How do these different cell types cooperate in obtaining nutrients for the sponge?

What will be an ideal response?

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A biologist discovers two populations of wolf spiders whose members appear identical. Members of one population are found in the leaf litter deep within a woods. Members of the other population are found in the grass at the edge of the woods. The biologist decides to designate the members of the two populations as two separate species. Which species concept is this biologist most closely utilizing?

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Biology & Microbiology