Habitats set aside for endangered species are often sectioned into areas by roads, producing separate small populations. This causes problems in conservation because it reduces:
A) sharing of resources. B) the number of potential leaders.
C) interaction among generations. D) gene flow between populations.
Answer: D
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Approximately how long after fertilization does the egg implant in the uterine wall?
A. 5 days B. 1 day C. 3 days D. 7 days E. 10 days
Somatic cell nuclear transfer is a type of
a. embryo cloning. b. adult cloning. c. therapeutic cloning. d. artificial twinning. e. stem cell cloning.
Match the choice on the left with the choice on the right
A) spatial structure B) linear structure C) AMP D) monosaccharide E) adenine F) quaternary structure G) starch H) cytosine I) collagen J) amino acid K) enzyme L) steroids M) guanine 1) monomer of protein 2) polymer of glucose 3) pyrimidine 4) nucleotide 5) multimeric complex 6) Haworth projection 7) a fibrous protein
Savannas typically occur in
A) cold areas with little rainfall in polar regions. B) cold areas with little rainfall at high altitudes in the tropics. C) very dry areas in the rain shadow of mountains of both temperate and tropical latitudes. D) warm areas with seasonal rainfall in the tropics.