Which of the following is the most effective in
protecting against sexually transmitted diseases?
a. condoms
b. the Pill
c. douching
d. an IUD
e. the rhythm method
Answer: a
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Which of the following statements about the breakdown of carbohydrates is false?
A. Aerobic respiration is very efficient and captures the majority of the energy available in each glucose molecule in a usable form (ATP). B. During glycolysis, starches are broken down into two molecules of pyruvate. C. Glycolysis does not require oxygen. D. ATP is produced during both glycolysis and oxidative phosphorylation. E. Glycolysis occurs in the cytosol, whereas the citric acid cycle occurs in the mitochondria.
During meiosis in an organism where 2n = 8, how many chromatids will be present in a cell at the beginning of meiosis II?
a. 2 b. 4 c. 6 d. 8 e. 12
The system of communication between cells through signaling pathways is called homeostasis
a. True b. False
Blood flows from the efferent arterioles directly into the peritubular capillaries
____________________ Indicate whether the statement is true or false.