The total energy producers store in a given amount of time is referred to as____
a. photosynthetic flow
b. primary productivity
c. energy flow
d. energy production
e. biomass flow
ANSWER: b
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The enzyme lipoprotein lipase ____
a. decreases in concentration with exercise b. allows muscles to releases fatty acids c. decrease the risk of cardiovascular disease d. results in lower levels of HDL e. has no overall impact on health
Which of the following statements best describes the benefits of radiation therapy?
A. Radiation therapy can be combined with other therapies, including chemotherapy. B. Radiation therapy can be directed against specific cells and tissues within the body. C. Radiation damages the DNA within cancer cells, either slowing down cell division or stopping it altogether. D. Radiation therapy may shrink tumors, making them easier to remove surgically. E. All of the choices are correct.
An ion having eleven protons, twelve neutrons, and ten electrons will have a charge of
A. +. B. -. C. ++. D. --.
The ascending portion of the loop of Henle is
A. impermeable to water and permeable to sodium. B. permeable to water and impermeable to sodium. C. the site of active transport of water. D. permeable to water and permeable to sodium. E. impermeable to water and impermeable to sodium.