Suppose you've assumed the following two data-generating processes: (1) Yi = f (Hi, Ji) and (2) Ji = g (Xi, Zi). What do these assumptions imply?
A. X has an indirect causal effect on J.
B. J has a direct causal effect on H.
C. Z has an indirect causal effect on Y.
D. Z has a direct causal effect on Y.
Answer: C
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Which of the following statements about the sodium-potassium pump is false?
a. Most cells of the body have sodium-potassium pumps b. The sodium-potassium pump moves sodium ions from inside the cell to outside, while importing potassium ions from the extracellular fluid. c. The sodium-potassium pump is a form of gated passive transporter. d. The transporter changes shape in response to binding of its target molecules.
An embryo is protected from most mechanical impacts because of the ____
a. amniotic cavity b. allantois c. placenta d. yolk sac e. chorion
The hierarchical system of nomenclature
a. allows diversity to be catalogued. b. organizes knowledge about species relationships. c. permits organisms to be identified. d. sorts organisms into groups. e. includes all of these
G0 phase
What will be an ideal response?