An ecologist recorded 12 white-tailed deer, Odocoileus virginianus, per square mile in one woodlot and 20 per square mile on another woodlot. What was the ecologist comparing?
A) density
B) dispersion
C) carrying capacity
D) quadrats
E) range
Answer: A) density
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You leave for winter vacation and forget to water your plants for two whole weeks! You also turned down the heat and closed the blinds. What hormone is most likely to be produced in response to these conditions?
A. Gibberellins. B. Abscisic acid. C. Cytokinins. D. Auxins.
A population's carrying capacity is: a. all of these choices
b. when a population reaches equilibrium with the environment's sustainability. c. a constant rate. d. the exponential growth of a population.
The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule. What is this attraction called?
A) a covalent bond B) a hydrophilic bond C) a van der Waals interaction D) a hydrogen bond E) an ionic bond
Apoptosis can be described as
A) programmed cell death. B) gastrulation. C) phagocytosis. D) neural tube formation.