A loss of plant biodiversity due to introduced invasive species will likely
A) increase the number of K-strategists.
B) increase the biodiversity of herbivore species.
C) decrease the amount of energy moving through the food chain.
D) increase the number of endemic herbivores in the system.
C
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What happens to the length of day (the number of hours of daylight) as you move north of the equator?
Figure 9-2: Earth–Sun relations on June solstice.
Noting the orientation of the circle of illumination on June 21, explain the above question.
What will be an ideal response?
The Earth’s age is thought by most geologists to be _________. Fill in the blank(s) with the appropriate word(s)
Geostrophic flow:
A) undergoes a constant, or near constant, acceleration. B) occurs when the pressure gradient force equals the Coriolis force. C) occurs in atmospheric levels with substantial friction. D) can occur in all levels of the atmosphere.
In general, who makes up the largest number of international labor migrants?
A) young females B) middle-aged females C) young males D) middle-aged males E) all four of the above groups migrate in equal proportions