Water is an example of a(n)
a. atom.
b. ion.
c. compound.
d. mixture.
e. element.
Answer: c
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Primary oocytes and spermatogonia are both haploid cells
a. True b. False
The process by which the presence and activity of neighboring cells determine an aspect of development is called ________
Fill in the blank(s) with correct word
What is a feature that puts Archaea more closely related to Eukaryotes?
A. They both have plasma membranes with fatty acids B. They both have circular chromosomes C. They both have similar transcription and translation machinery D. They both have peptidoglycan in their cell walls
Which is the best reason for adenine base-pairing with thymine in DNA?
A. The two molecules covalently bond together. B. Both are large bases and, therefore, bond tightly. C. Both are small bases and, therefore, bond tightly. D. These two bases fit together like jigsaw puzzle pieces.