Subatomic particles with a positive charge are called ________
A) atoms
B) electrons
C) ions
D) molecules
E) protons
E
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Some species that tend to reproduce later in life and have a small number of offspring with long life spans ____.
A. have high population growth rates B. have high environmental resistance C. have low environmental resistance D. are unlikely to ever face extinction E. are vulnerable to extinction
A heavy truck and a small car rolling down a hill at the same speed are forced to stop in the same amount of time. Compared to the force that stops the car, the force needed to stop the truck is
A) greater. B) smaller. C) the same.
That the northern continents were once joined and located along the equator was shown by the:a
coal-age plant fossils of North America and Europe. b. Glossopteris flora. c. distribution of mountain ranges. d. distributions of Permian and Triassic reptiles. e. distributions of northern hemisphere glacial tillites.
Which country would be more likely to have a growing population?
A. One with a low disease rate B. One with a lower life expectancy. C. One with a high disease rate. D. One with high accident rates.