During open-heart surgery, the first heart structure that would be cut into is the ________.
A. pericardium
B. right ventricle
C. left atrium
D. left ventricle
E. myocardium
Answer: A
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When we say "populations evolve, not individuals," what does this mean?
A. Evolution does not happen. B. Individuals cannot change, but genotype frequencies in a population can change. C. Evolution is the same thing as change in genetic makeup in a population over time. D. Only alleles change over time, not genotype frequencies. E. Only genotype frequencies change over time, not alleles.
Most deserts occur near ____ latitude because of dry descending air masses
a. 0? b. 10? c. 20? d. 30? e. 40?
What are the possible phenotypes of the children if the mother's genotype is IAi for blood type and the father is IBi?
(Use the Punnett square to verify your answer.) a. all AB b. A, B c. A, AB d. A, B, O e. A, B, AB, O
A typical number of mates an animal has during its breeding season is known as the ________.
Fill in the blank(s) with the appropriate word(s).