Charles Darwin and his son experimented with which plant growth response?
A. Thermotropism
B. Gravitropism
C. Circadian rhythms
D. Heat shock
E. Phototropism
Answer: E
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Which chemical is used in both water purification and sewage treatment to provide long-term disinfection?
A. Chlorine B. Activated charcoal C. Fluorine D. Copper sulfate
A woman who becomes obese during pregnancy runs the risk of all the following pregnancy complications EXCEPT
A. miscarriage B. stillbirth C. neonatal death D. spina bifida
Naked mole rats are haplodiploid.
Answer the following statement true (T) or false (F)
Among social animals, cooperative behavior does NOT usually include
A) alliances among members of the population. B) everybody doing their own thing. C) division of labor. D) increased likelihood of finding mates. E) a caste system in which individuals do certain jobs.