Which of the following is true about food irradiation?
Select one:
a. The FDA does not allow food irradiation because it is dangerous.
b. Irradiation significantly decreases the vitamin content of foods.
c. Foods that are irradiated do not require labeling as such.
d. Irradiation can slow or limit the growth of insects, microorganisms, and parasites in food.
d. Irradiation can slow or limit the growth of insects, microorganisms, and parasites in food.
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The ____ tissue system is made up of interconnecting cells that form transport channels throughout the plant
a. ground b. organ c. vascular d. dermal e. xylem
Cells produced by dividing B or T cells may be set aside for future responses to threat. These cells are
called a. effector cells. b. memory cells. c. dendritic cells. d. phagocytes. e. fibroblasts.
When elemental sodium is added to water, the sodium atoms ionize spontaneously. Uncharged Na becomes Na+. This means that the Na atoms have been _____________
(a) protonated. (b) oxidized. (c) hydrogenated. (d) reduced.
Which of the following types of cells might have the longest/slowest cell cycle?
a. nerve cell b. skin cell c. cell lining the gut d. hair cell