How have humans intruded into the global water cycle?
What will be an ideal response?
Humans are destroying tropical forests at an alarming rate, interrupting the rainfall patterns of these areas. People are also using and polluting groundwater, a resource that is renewable only on the order of thousands of years.
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The adrenal glands are located ____
a. beneath the pituitary gland b. between the pons and the medulla oblongata c. next to the pancreas d. on top of the kidneys e. attached to the liver
What causes the hypocotyl of dicots to straighten?
a. light b. gravity c. wind d. wind e. soil
An unexpected change in a cell's genetic makeup is called a ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is an overgrowth of cells that serves no useful purpose?
A. oncogene B. tumor C. growth D. proto-oncogene E. callus