A diagram of the flow of energy through an ecosystem resembles a pyramid. This explains why
A. not every organism at one level of the food chain is eaten by an organism at the next level of the food chain.
B. animals need energy for maintenance.
C. there is more grass than zebras, and more zebras than lions, on the African savanna.
D. some ecosystems have a higher primary productivity than others.
Answer: C
You might also like to view...
Which of the following is true about buffering?
A. You can either dissolve the buffer zones or keep the buffer zones separate and you can have the options of creating a single ring or multiple rings. B. You have the options of creating a single ring or multiple rings. C. You can buffer with different buffer distances. D. All of these are correct. E. You can either dissolve the buffer zones or keep the buffer zones separate.
In raster data query, rasters, not fields, are used in the operand.
Answer the following statement true (T) or false (F)
E.G. Ravenstein considered it a "law of migration" that longer distance migrations would gravitate away from centers of economic strength
Indicate whether the statement is true or false.
Conservative explanations for the inner-city ghetto focus on
A) deindustrialization. B) welfare and public assistance. C) lack of education. D) a rise in out-of-wedlock births. E) poverty.