Individuals with nicotine acetylcholine receptors that bind tightly to nicotine are more likely to _____
a. have a family member who is resistant to nicotine addiction
b. have behavioral disorders
c. have mutations in the GABBR2 gene
d. be vulnerable to nicotine addiction
e. show resistance to nicotine addiction
d
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From which germ layer(s) do(es) the stomach arise?
a. ectoderm only b. endoderm only c. mesoderm only d. mesoderm and endoderm e. endoderm and ectoderm
Blood cell formation
What will be an ideal response?
Arthritis
What will be an ideal response?
Radiometric dating ____.
A. is based on the premise that each isotope decays at a constant rate B. is unpredictable because of changes in temperature and pressure C. can be used to date sedimentary rock, but not fossils D. has a substantial error factor E. can only be used for dating animal fossils