Refer to Figure 10-1. Which of the following combinations of letters accurately represents two sister chromatids?
a. A and B
b. A and C
c. A and D
d. A and E
e. B and F
B
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Refer to the figure above. Why is it important to preserve the red panda?
A) The group has very few representatives of its lineage. B) The group is particularly sensitive to environmental disturbances. C) The group has low genetic diversity. D) The group is economically important. E) All of the lineages in the figure above are important to preserve.
Which lists the stem cells from the least to the highest degree of flexibility?
A) embryonic stem cells < adult stem cells < zygote B) embryonic stem cells < zygote < adult stem cells C) adult stem cells < zygote < embryonic stem cells D) adult stem cells < embryonic stem cells < zygote
What does phototaxis allow the cell to do?
a. stay in the optimum light environment b. stay in the optimum magnetic environment c. stay in the optimum chemical environment d. stay in the optimum climate environment
A(n) ____ is a polymer.
A. monosaccharide B. amino acid C. nucleotide D. polypeptide