__________ cover the body surface, and line its internal spaces. Fill in the blank(s) with the appropriate word(s)
Epithelial tissues
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How do we know that the atmosphere of the earth experienced an increase in O2 and became oxidizing between 2.5 and 2 billion years ago?
What will be an ideal response?
The ideal diet consists of all EXCEPT which
of the following? a. bulk b. few carbohydrates c. little salt and refined sugar d. little red meat e. fish, poultry, and legumes
Mutations that result in resistance to specific antibiotics in bacterial organisms occur
A. only when the bacteria are exposed to the drug to which they become resistant. B. at any time, even when the bacteria are not exposed to the drug. C. more often when the bacteria are exposed to the drug. D. only when the bacteria are exposed to radiation or other mutagens.
Pairing rice and lentils together in a single meal is advisable because, together, they:
A) are more easily digested than if eaten separately. B) provide all the nutrients and vitamins your body needs. C) provide all the essential amino acids. D) function in at least two ways, such as serving in structural or protective roles. E) provide a meal that is rich in complete proteins.