Research shows that sex education is
A. largely responsible for the high incidence of teenage pregnancy in the United States.B. being shoved down the throats of American teenaers against the will of American taxpayers.
C. more detailed in Iran than in the United States.
D. immoral
Answer: C. more detailed in Iran than in the United States.
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A golfer wants a new set of clubs to improve her game. In an experiment, she tests different drivers made from different materials. She compares the drivers to the distance of her shot. In this simple experiment, the independent variable is the
A. type of material used to make the golf ball. B. swing speed of the golf club prior to striking the golf ball. C. distance the golf ball traveled. D. type of material used to make the club head. E. wind direction when the experiment took place.
Which of the following is a characteristic of
the plasma membrane?
a. it controls the contents of the cell b. the main lipid of a cell membrane is cholesterol c. carbohydrates carry out most of the cell’s dynamic functions d. it encloses a jellylike mixture called a cytoplastic reticulum e. all of these are characteristics of plasma membranes
Figure 40.5B
Use the figure above showing the structure of the human kidney to answer the following question.
The region where the renal cortex is located is indicated by the letter(s) _____.
A. A B. B C. C D. E E. both A and B
The valence of an atom represents its
A) ability to interact with other atoms. B) electronegativity. C) radioactivity. D) ability to attract electrons. E) ability to interact with water.