Which one of the following is characteristic of a K-selected species?
A) High biotic potential
B) Large body size
C) Short life span
D) First reproduction at an early age
B
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Summer temperatures are high in arid climates because
A. evening cloud cover prevents the loss of heat. B. high sun angle and low relative humidity. C. most desert locations are closer to the sun in the summer. D. high sun angle and high relative humidity.
By putting events in order, scientists can use the order to determine how long ago certain geologic events took place
Indicate whether this statement is true or false.
At the equator, Earth rotates toward the east at a speed close to 1000 knots. On a windless day, the air above moves ____ at ____ speed
a. northward; faster b. eastward; the same c. southward; slower d. westward; faster e. eastward; slower
The center of mass of the Earth-Moon system is called the ________
A) aphelion B) apogee C) barycenter D) perigee E) perihelion