Under which conditions would your run a t-test?
A. When the independent variable is discrete and the dependent is continuous
B. When the independent variable is continuous and the dependent variable is discrete
C. On variables that are only continuous
D. On variables that are only discrete
Answer: A. When the independent variable is discrete and the dependent is continuous
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The electrical stimulus for each human heartbeat begins in the ____ at the _____ node.
A. right atrium, sinoatrial. B. left atrium, sinoatrial. C. right atrium, atrioventricular. D. right ventricle, atrioventricular. E. pulmonary trunk, sinoatrial.
Through evolution, the hindlimbs of cetaceans have been modified, eventually becoming
a. flippers. b. tail. c. non-existent. d. flukes. e. enlarged.
Contractile vacuoles maintain osmotic balance by ________.
A. expelling water from the cell B. sensing surrounding moisture levels C. filtering ions D. drawing water into the cell
Which virus is associated with liver cancer
What will be an ideal response?