Disease spread in poorer countries of the world is increased by
A) inadequate medical care.
B) lack of immunizations and antibiotics.
C) malnourishment.
D) all of the above.
Ans: D) all of the above.
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A woman has a child using intrauterine insemination. The woman is the child's
A) gestational mother only. B) genetic mother only. C) gestational and genetic mother. D) gestational and surrogate mother.
Hominins evolved when the climate was ____
a. wet and hotter b. wet and cooler c. dry and hotter d. dry and cooler e. similar to today
The validity of scientific discoveries cannot be based
on a. morality. b. aesthetics. c. philosophy. d. economics. e. any of these.
The major obstacle to the use of xenotransplants is overcome by ________________
A. series of injections that depress the immune systems of recipients B. changing genetic markers in humans to make them more receptive C. changing genetic markers in donor animals to make them more compatible with human recipients D. introducing a complement of immune system genes to both the donor animal and recipient human E. doing more than one of these