Which of the following ions is significantly involved in the opening and closing of the stomata?
(A) Calcium
(B) Nitrogen
(C) Potassium
(D) Magnesium
Ans: (C) Potassium
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The conversion of pyruvic acid to acetyl-CoA can be described as ________, because a molecule of CO2 is produced as a by-product
A) decarboxylation B) amination C) respiration D) oxidation E) phosphorylation
What is the most likely cause of a sampling error?
a. a malfunctioning calculator b. a poorly designed hypothesis c. very few individuals in the control group d. having both an experimental and a control group e. the researcher’s knowledge of which individuals were in the experimental group
Which structure is NOT part of the endomembrane system?
A) nuclear envelope B) chloroplast C) Golgi apparatus D) plasma membrane
A type III survivorship curve is characteristic of ____
a. dogs b. goats c. hawks d. clams e. horses