Which of the following is NOT true regarding
apoptosis?
a. It is programmed cell death.
b. It sculpts body parts.
c. It primarily eliminates old, diseased cells.
d. It involves cell self-destruction.
e. The formation of the human hand is an
example
C
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After initial processing in the cytoplasm, miRNAs are imported into the nucleus where they bind to pre-mRNAs
A. True B. False
Chromosomes will break at particular spots and undergo several translocations. Which species has not undergone chromosome breakage and translocations? a. Humans b. Pigs c. Cows d. All have undergone breakage and translocations
e. Mice
The intermediate disturbance hypothesis posits which of the following?
a. Species richness is greatest in communities that experience infrequent moderate disturbances. b. Species richness is greatest in communities that experience high temperatures. c. Species richness is greatest in communities that experience frequent severe disturbances. d. Species richness is greatest in communities that experience frequent moderate disturbances. e. Species richness is greatest in communities that experience intense disturbances.
One result of Costa Rica's commitment to conservation is that
A) destructive practices such as massive logging and large-scale single-crop agriculture have been nearly eliminated. B) both protected park areas and the buffer zones around them have suffered only negligible deforestation. C) ecotourism generates many jobs and brings in a significant fraction of the country's revenue. D) about 95% of the country's land is protected in some way.