The stage that is most similar in all three groups is:
a. stage 1. c. stage 3.
b. stage 2. d. stage 4.
A
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Home-canned foods should be boiled before consumption to prevent botulism. Considering that this treatment does NOT destroy endospores, why would it be helpful in preventing the disease?
A. Because it would destroy the vegetative cells, and only the vegetative cells cause the disease. B. Because it would at least weaken the endospores, making them more susceptible to elimination by our immune system. C. Because the heat would denature the botulism exotoxin and inactivate it. The exotoxin is what leads to the disease symptoms, so this would make the food safer. D. Because the heat would denature the botulism endotoxin and inactivate it. The endotoxin is what leads to the disease symptoms, so this would make the food safer.
The open ocean is a(n) ________ environment.
A. oligotrophic B. phylotrophic C. eutrophic D. neotrophic
Most biologists now agree that the common ancestor of all animals was probably a eumetazoan
a. True b. False
The end result of meiosis is
What will be an ideal response?