The embryo is MOST vulnerable to teratogens during which stage of pregnancy?
A) first trimester B) second trimester
C) third trimester D) Teratogens do not affect the embryo.
A
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A mitochondrion is a type of organelle that is in human cells.
Answer the following statement true (T) or false (F)
Which of the following statements is incorrect relating to the role of the water?
a. you can survive only a few days without water b. water will keep you thin c. water play a part in moving food through the GI tract d. water makes up 75% of our bodies
The majority of college students change their major at least _____ before graduating
a. once b. twice c. three times d. four times
As compared to agricultural variety, monoculture farming
A. requires a lighter application of pesticides. B. requires a heavier application of fertilizers. C. decreases a region's vulnerability to food shortages during heat waves, droughts, and floods. D. is better able to provide a range of nutrients, phytochemicals, and types of dietary fiber.