Some protists have a pellicle, which is used for ____
a. defensive purposes
b. sexual reproduction
c. structural support
d. water absorption
e. food storage
ANSWER: c
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When the direct method of measuring mutation rates is used, estimates are made for a specific
____________________ over a number of ___________________ Fill in the blank(s) with the appropriate word(s).
Which of the following is a function of the nucleus?
A. stores DNA B. stores sugars C. builds proteins D. packages proteins
Why does vomiting often cause a reduction in breathing rate?
a. Reduced breathing occurs to allow PCO2 to rise to aid in the increase in blood bicarbonate. b. Reduced breathing causes an increase in PCO2 which lowers pH toward the setpoint after vomiting causes a loss in acid and rise in blood pH. c. Reduced breathing causes a fall in PCO2 which lowers the pH, moving blood pH toward its homeostatic setpoint. d. Reduced breathing causes a fall in blood PCO2, raising the pH, moving blood pH toward its homeostatic setpoint.
Scientists who have a financial stake in a company are now required to state that when they do research. This is an example of
A. a biotechnology revolution. B. statistical significance. C. financial planning. D. ethics in science. E. a new business model.