Which statement is NOT true about photoperiodism?
A. A long-day plant will flower when the day length is longer than a critical length.
B. A short-day plant flowers when the day length is shorter than a critical length.
C. A day-neutral plant flowers according to some form of regulation other than photoperiodism.
D. The phytochrome form Pfr is converted to Pr in daylight, producing the active form that induces flowering in long-day plants.
Answer: D
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Which of the following statements is correct regarding the process of science?
A. The process of science involves testing hypotheses, but also phases of exploration, communication and societal outcomes. B. The process of science involves testing hypotheses, but also collecting data. C. The process of science is all about testing hypotheses. D. The process of science is all about developing new technologies.
As body temperature rises, how is enzyme activity changed?
a. decreases b. no change c. increases d. decreases and then increases
Major air masses rise from Earth's surface at:
a. the equator and 30 degrees latitude b. 30 degree and 60 degree latitudes c. the equator and 60 degrees latitude d. 30 degrees latitude and the poles e. the poles.
How is diabetes linked with homeostasis?
A) Diabetes results from the body having a positive-feedback response to the level of glucose in the blood. B) Diabetes results from the body responding too strongly to the level of glucose in the blood. C) Diabetes results from the body not responding with a negative feedback to the level of glucose in the blood. D) Diabetes is not linked with homeostasis.