In an asexual life cycle, cells reproduce by
A. meiosis and fertilization.
B. meiosis.
C. All of the answer choices are correct.
D. mitosis.
E. fertilization.
D. mitosis.
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Nitrogen has 7 electrons and can form a maximum of ________ bonds with other elements.
A. 1. B. 2. C. 3. D. 4. E. 5.
The cell membranes of bacteria and eukaryotes are quite similar, differing only in
A. the presence of phospholipids. B. the presence of sterols. C. being selectively permeable. D. the ability to transport wastes out of the cell. E. the presence of proteins in the bilayer.
If these organisms were represented in an energy pyramid, which group would have the
smallest number of organisms?
a. sunflowers b. beetles c. spiders d. possums
Which of the following is not true of fluorescent in situ hybridization (FISH)?
A. It can be used to identify unknown bacteria without culturing. B. It can be used to detect RNA in cells. C. Probes can locate genes on chromosomes. D. It uses electrophoresis to separate the DNA. E. Probes can be applied to intact cells.