Why do bacterial cells require calcium?
A. It makes strong bones.
B. It stabilizes the ribosomes.
C. It stabilizes the cell wall.
D. It maintains cellular pH.
E. It stabilizes the nucleoid.
Answer: C
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The spreading of cancer cells, wound healing, and blood clotting all rely on the same type of cell movement called:
A. swimming. B. crawling. C. waving. D. whipping.
Which is involved in reacting to virus-infected cells?
A. Cell-mediated immunity B. T cytotoxic cells C. B cells D. MHC I E. Cell-mediated immunity, T cytotoxic cells, AND MHC I
A researcher is interested in creating a phylogenetic tree showing the evolutionary relationship of several
cyanobacterial species based on the closeness of their nitrogenase gene sequences. Which field of research most directly applies to the researcher’s project?
a. comparative proteomics b. comparative genomics c. comparative transcriptomics d. comparative phylogenetics e. comparative phenotype
All capillary beds have blood running to them at all times.
Answer the following statement true (T) or false (F)