Which of the following covalent bonds is relatively nonpolar?
A.) -C-H
B.) -N-H
C.) -O-H
Ans: A.) -C-H
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The movement of chemicals through ecosystems is known as
A. gross primary production. B. biogeochemical cycles. C. community ecology. D. net primary production. E. biomagnification.
Answer the question using the accompanying figure. The male bee represented by letter A is ____ and the queen bee
represented by letter B is ____.
a. diploid; triploid b. haploid; triploid c. triploid; diploid d. diploid; haploid e. haploid; diploid
The outer living limit of the cell is called the:
A) edge. B) plastid. C) plasma membrane. D) cell wall.
The advantages of the amniotic egg include (select all that apply)
A. relatively long development times supported by a large yolk. B. the ability to resist desiccation in dry terrestrial habitats. C. improved protection from predators. D. improved ability to withstand wide temperature fluctuations. E. the ability to withstand freezing.