The ________ model assumes that evolution occurs in spurts, between which there are long periods of stasis with little evolutionary change.
What will be an ideal response?
punctuated equilibrium
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Which of the following reaction pathways is NOT part of the second stage of aerobic respiration?
a. electron transfer phosphorylation b. acetyl-CoA formation c. Krebs cycle d. glycolysis e. [electron transfer phosphorylation] and [glycolysis]
The last intermediate produced in the Krebs
cycle before the entry of the next acetyl-CoA is a. pyruvate. b. acetyl-CoA. c. fructose bisphosphate. d. oxaloacetate. e. citrate.
When a person is having a heart attack, the pain originating in the heart muscle is often felt in the left shoulder and arm. This is called
A. Muscle pain B. Referred pain C. Deep pain D. Acute pain
In a scientific experiment, a control group
a) is less important than an experimental group b) makes the experiment better, but is not essential c) can be compared with an experimental group to assess whether one particular variable is causing a change in the experimental group d) must be kept in a laboratory