Briefly explain the relationship between the surface area and volume of a cell and overall cell size. List two ways in
which organisms have successfully "solved" this problem. What will be an ideal response?
The surface area of a cell must be large enough to support the metabolism of the cell volume.
To solve this problem some cells have long flat extensions and others have fingerlike
projections to increase surface area.
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Within the human genome, 45% of the DNA is composed of what?
A. transposable elements B. highly repetitive DNA C. moderately repetitive DNA D. coding sequences E. noncoding sequences
Because energy transfer is not 100% efficient across trophic levels, a maximum of about _____% of energy and biomass available at one trophic level is available at the next
A. 1 B. 5 C. 10 D. 15 E. 20
The function of the epididymis is to:
a. secrete an alkaline fluid that neutralizes the acids of the vagina. b. produce a nutritive fluid for the sperm. c. provide a place for maturation and storage of sperm. d. secrete mucus that lubricates the penis. e. maintain sperm at a low body temperature
At Hardy - Weinberg equilibrium, allele frequencies
A. Change from one generation to the next so evolution does not occur B. Remain constant from one generation to the next so evolution does not occur C. Change from one generation to the next so evolution occurs D. Remain constant from one generation to the next so evolution occurs E. None of the answers are correct