Which value(s) would be required to calculate how long ago the most recent ancestor of ungulates lived?
I) the number of base pairs that differ among species in a certain genetic sequence
II) the total number of base pairs in the genetic sequence examined
III) the age of a fossil ancestor for calibration
A) I
B) II
C) III
D) I, II, and III
D
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Suppose you have a random sample of 2,179 credit scores from a population of mortgage applicants with a sample mean of 620 and sample standard deviation of 70, and would like to determine if this is sufficient enough to rule out that the population mean is not 610. Which of the following objects would you calculate to make this decision?
A. Consistent estimator B. T-stat C. Sample range D. Normal distribution
Endocytosis includes
What will be an ideal response?
A sodium ion (Na+) has a net charge of positive one; to become ionized, sodium must _____.
A) gain one positively charged proton B) gain one positively charged neutron C) lose one negatively charged electron D) gain one positively charged positron
What digestive hormone stimulates gall bladder contraction?
A. Insulin B. Secretin C. Cholecystokinin D. Gastric inhibitory peptide E. Gastrin