A population can decrease in size as a result of which of the following processes?
A. an increase in emigration
B. an increase in death rate
C. an increase in predation
D. All of the answer options are correct.
E. None of the answer options is correct.
D
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Why were the slime molds and water molds once considered to be fungi?
A. Early identification methods focused on appearances rather than biochemical characteristics. B. Early identification methods focused on appearances rather than genetic similarities/differences. C. They ARE fungi. D. They possess the same material in their cell walls (chitin) that fungi possess.
Does the presence or absence of a particular protein correlate with the presence or absence of a particular allele?
a. Yes b. No
Specialized islet cells that secrete hormones are
found scattered throughout the a. adrenal cortex. b. liver. c. thymus. d. adrenal medulla. e. pancreas.
The demographic transition:
a. includes a decrease in the death rate followed by a decrease in the birth rate as a population becomes industrialized. b. includes a decrease in the birth rate followed by a decrease in the death rate as a population becomes industrialized.