Which of the following is not a valid reason to be concerned that your model might suffer from the endogeneity problem?
A. Simultaneity
B. Measurement error in your outcome variable
C. Omitted variables
D. Measurement error in one of your treatment variables
Answer: B
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Consulting Figure 7.1 if necessary, during which stage(s) of cellular respiration is(are) carbon dioxide released?
A. stage 1 only B. stages 1 and 2 C. stages 2 and 3 D. stage 3 only E. stages 3 and 4
During the follicular phase of the ovarian cycle,
A. meiosis I is completed to form the secondary oocyte. B. progesterone is secreted from the corpus luteum. C. estradiol is secreted from the cumulus mass. D. both meiosis I and progesterone secretion from the corpus luteum occur. E. both meiosis I and estradiol secretion from the cumulus mass occur.
Which of the following statements is true about the serotonin receptor family?
a. Most of the receptors are ionotropic b. 5-HT1A receptors are located primarily in the cerebral cortex c. 5-HT2A receptors cause inhibition by decreasing adenyl cyclase and increasing potassium efflux d. The newer antipsychotics like Risperdal act by blocking the 5-HT2A receptor e. LSD and similar hallucinogens are most likely agonists at the 5-HT1A receptor
When the two gametes that fuse to form a zygote contain different alleles of a given gene, the offspring is
A) abnormal. B) heterozygous. C) a new species. D) homozygous. E) haploid.