Physiological changes in ectotherms that change their temperature tolerance as the seasons change
from winter to summer are called
a. estivation.
b. hyperthermia.
c. thermal acclimatization.
d. hypothermia.
e. hibernation.
C
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Which of the following hormones increases when plants are flooded?
A. gibberellin B. auxin C. ethylene D. cytokinin E. abscisic acid
Whenever the body is reexposed to a sensitizing agent, the IgE antibodies cause
a. the production of prostaglandins and histamine. b. the release of antihistamines. c. suppression of the inflammatory response. d. the production of clonal cells. e. mast cells to become inactive.
________ competition results when nonterritorial behavioral interactions between two species result in negative effects on both species
Fill in the blank(s) with correct word
A few hours after a dinner party, most of the people who attended begin to suffer nausea, vomiting, and diarrhea. The food at the meal is suspected as the source, although no unusual microbes are cultured from samples of the food or from stool samples
These observations suggest they may be suffering from food (infection/intoxication). What will be an ideal response?