9. Why are there usually few organisms at the top of an energy pyramid?
A. Humans hunt for organisms at this level
B. Only so many will fit in a pyramid drawing
c. Organisms at the top are larger and require more living space,
D. So much energy is lost from one level to the next that the energy available
can only support a few.
10. The diagram below represents a pyramid of energy in an ecosystem. Which
level would be most likely to contain organisms that do photosynthesis?
А
Α.Α
B.B
B
C.C
D.D
C
D
11. In many desert regions, water is diverted from streams and rivers to people in
cities. How does this affect the animals in the area?
A. The animals become more active in daylight hours
B. The animals migrate to tropical rainforests
C. The animals move closer to cities to get food
D. The animals stop searching for food and water
12. Which food chain correctly describes the flow of energy in an ecosystem?
A gross
COW - human
B. Cow
grass-human
C. caterpillar leaf
D. leaf
bird - caterpillar
bird
13. In this energy pyramid, which organisms have the most energy available?
A. producers
C. herbivores
B. camivores
D. top predator​