If a child has type O blood and the mother is type A, then which of the following might be the blood type of the child's father?
[a] A only
[b] A or O
[c] B only
[d] A, B, or O
[e] O only
Answer: [d] A, B, or O
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Which muscle contraction is involuntary?
A. cardiac only B. smooth only C. cardiac and smooth D. skeletal only E. cardiac, smooth, and skeletal
Which is the correct sequence in the evolution of
plants? a. algae >>> gymnosperms >>> angiosperms>>> bryophytes >>> ferns b. ferns >>> algae >>> bryophytes >>> gymnosperms>>> angiosperms c. algae >>> bryophytes >>> ferns >>> gymnosperms>>> angiosperms d. ferns >>> gymnosperms>>> algae >>> bryophytes >>> angiosperms e. algae >>> bryophytes >>> ferns >>> angiosperms >>> gymnosperms
The mating system in which males and females mate with one or many of the opposite sex and form no pair bond is known as
A) monogamy. B) polygyny. C) polyandry. D) promiscuity.
Which of these neurotransmitters, released by neurons of the sympathetic nervous system, helps prepare the body for energetic activity?
A) Serotonin B) Acetylcholine C) Endorphin D) Dopamine E) Norepinephrine