After some time, the tip of a plant that has been forced into a horizontal position grows upward. This phenomenon is related to _____
A) calcium release from the endoplasmic reticulum of shaded cells
B) whether the plant is in the northern or southern hemisphere
C) gibberellin production by stems
D) auxin production in cells receiving red light
E) auxin movement toward the lower side of the stem
Answer: E
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Recruited leukocytes that have invaded the vessel wall are directed to the pathogen by the process of
A) chemotaxis. B) diapedesis. C) migration. D) attachment. E) opsonization.
The introduction of a foreign species into an area where it is not native is called:a
parasitization. b. infestation. c. fragmentation. d. biotic pollution. e. commercial harvest
Secondary metabolites originally meant to defend a plant can become essential compounds for some herbivores.
Answer the following statement true (T) or false (F)
Constipation can result from the consumption of a substance that _____
A) promotes water reabsorption in the large intestine B) speeds up movement of material in the large intestine C) decreases water reabsorption in the small intestine D) stimulates peristalsis