Which of the following was something that Charles Darwin did NOT study during his long career?
a. the classification of barnacles
b. the pollination of orchids
c. the response of plants to light
d. the genetic basis of traits
e. insectivorous plants
D
You might also like to view...
The diversity of microorganisms in culture collections is representative of the diversity of microorganisms found in nature
Indicate whether the statement is true or false.
Each of these is a mechanism of antimicrobial resistance by microorganism except
A. enhancement of metabolic pathways B. decreased uptake C. alteration of target site D. enzyme production
Selfishness should be seen more often between unrelated individuals unless 1) there are repeated opportunities to be a donor or recipient, 2) the cost to be a donor is relatively low, and 3):
a) kin selection is a factor. b) altruistic donors are not recognizable. c) cheaters are recognizable and punished for cheating. d) the benefits to the recipient are lower than the costs of the donor. e) two individuals are secretly related, but they don't know it.
In some cases, just a few hormone molecules binding to the surface of a cell can trigger a very large response because
A. each hormone can bind to multiple receptors simultaneously causing amplification of the signal. B. the signal is amplified by activation of transcription factors that each catalyze multiple reactions. C. the hormone triggers the cell to release more hormones, amplifying the signal. D. the signal is amplified by activation of enzymes that each catalyze multiple reactions. E. each hormone can bind to transcription factors simultaneously causing amplification of the signal.