Potential energy:
a) is energy that changes into chemical energy only with very high temperatures
b) transfers motion to matter.
c) is contained in matter placed in certain positions or arrangements.
d) contains less energy than kinetic energy.
e) is kinetic energy that has not yet been turned to heat.
Ans: c) is contained in matter placed in certain positions or arrangements.
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The function of the glycoprotein spike on some viruses is to:
a. allow viral entry into the host cell. b. protect the nucleic acid. c. prevent drying out and the destruction of the virus. d. stabilize attachment for the lipid envelope.
The anatomical structure shown above is of
a. venous valves. b. pulmonary veins. c. the inferior valve. d. the right myocardial sac. e. the heart apex
Two species of garter snakes live in the same geographic area. One lives mainly in water and the other mainly on land; therefore, they rarely encounter each other and do not interbreed. What type of isolation is this?
A) Mechanical B) Temporal C) Behavioral D) Ecological E) Geographic
GC content refers to:
a. the G-value paradox. b. the C-value paradox. c. the fraction of G-C nucleotides in the genome. d. A and B. e. All of the above.