In humans ventilation is powered by
a. the diaphragm only.
b. muscles attached to the ribs only.
c. the lungs themselves.
d. the diaphragm and rib muscles.
e. the heart.
D
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A. Yes, only plants cells have vacuoles. B. No, bacteria also contain vacuoles that serve the same function C. No, other organisms, such as certain types of fungi and protists, have vacuoles that serve different functions. D. No, other organisms, such as certain types of fungi and protists, have vacuoles that serve the same function as in plant cells.
Defend why codon usage must be considered when cloning a gene into another organism
What will be an ideal response?
Describe the observational differences between long-period and short-period comets
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Which of the following activities is likely to deplete an aquifer fastest?
A) desert trees B) deep-well drilling for farms C) using chlorofluorocarbons D) employing molybdenum-based fertilizers