Sewage pollution is especially problematic in coastal areas
a. that are sparsely populated.
b. after drought.
c. after prolonged rains.
d. having fast moving currents.
C
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Which of the following is an example of local control over breathing?
a. automated lung ventilation and lung perfusion adjustments maximizing O2 and CO2 exchange b. the aortic bodies signaling an increase in breathing rate when blood pH is acidic c. the interneuron groups of the pons refining the contractions involved with inhalation and exhalation d. the carotid bodies signaling an increase in breathing rate when O2 levels are low e. the ventral group of interneurons signaling an increase in breathing rate and depth during exercise
Which of the following hormones promotes fruit ripening and dropping of leaves?
A) auxin B) ethylene C) gibberellin D) abscisic acid
The genetic material is duplicated during
A) the mitotic phase. B) G1. C) the S phase. D) G2.
Which of the following is related to an increase in the chance of breast cancer?
A) breast-feeding B) early first menstruation C) early menopause D) pregnancy