A gaseous hormone produced by plants that helps control fruit ripening is
A. carbon dioxide.
B. auxin.
C. ethylene.
D. chlorophyll.
E. carotene.
C. ethylene.
You might also like to view...
ALL positive HIV-EIA tests must be confirmed by another independent test, usually the HIV Western blot
Indicate whether the statement is true or false.
Severe acute respiratory syndrome (SARS)
A. is classified as an opportunistic infection. B. causes high fever, pneumonia, and respiratory distress. C. began with an initial outbreak in the United States and then spread to Canada and China. D. is caused by the respiratory syncytial virus.
After the mature follicle releases the egg, the remaining follicle cells form the ________
Fill in the blank(s) with correct word
A paracrine signal that relaxes smooth muscle cells is
A) nitric oxide. B) vitamin D. C) testosterone. D) cortisol. E) antidiuretic hormone