Human stem cells are valuable in drug development because they can be used to
A) create experimental organisms, such as rats and mice.
B) replace experimental animals such as rats and mice.
C) grow human embryos in culture, on which drugs can be tested.
D) study the latest stages of the disease that would have unfolded if the person hadn't died.
B) replace experimental animals such as rats and mice.
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The risk of having a baby with Down syndrome is associated with:
A. the age of the mother. B. the health of the mother. C. the socio-economic status of the mother. D. the IQ of the mother. E. All of the answer options are correct.
Amyloid plaques are routinely found in the brains of individuals affected by _____________________, where they cause nerve cell degeneration and death
Fill in the blank(s) with correct word
Territoriality often results in clumped dispersion
____________________ Indicate whether the statement is true or false.
A simple nervous system _____
A) must include chemical senses, mechanoreception, and vision B) includes a minimum of twelve effector neurons C) has information flow in only one direction: away from an integrating center D) includes sensory information, an integrating center, and effectors