What mode of transmission increases, stabilizes, then decreases?
A. Water
B. Fomite
C. Droplet
D. Parenteral
E. Biological vector
E. Biological vector
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An enzyme may lose its ability to function because of
(a) excessively high temperatures. (b) a change in its three-dimensional structure. (c) a large change in the pH of the environment. (d) all of the above.
The current theory is that chloroplasts are descendants of symbiotic cyanobacteria that lived within eukaryotic cells. If we look at their respective genomes, however, we see that the cyanobacteria have many more genes than do chloroplasts
Where did these genes go? A. Restriction enzymes removed them. B. Endosymbiosis requires a reduction in genetic material in order to be successful. C. Many of them were transported to the nucleus, and others were lost. D. Nowhere. Cyanobacteria and chloroplasts actually have the same number of genes. E. None of the answers options is correct..
No asteroids have orbits that cross the Earth's orbit
a. True b. False Indicate whether the statement is true or false
What is the result of resistance exercise?
A) Existing muscle cells increase in diameter. B) More mitochondria develop. C) The number of muscle cells increases. D) New blood vessels develop.