41. This picture shows an enenty pyramid What is an nenu pyramid
42. What are trophic levels?
43. How many trophic levels are seen in this enery pyramid?
44. Based on what you have learned about food chains, what terms can be used to describe each of the
following organisms from the picture?
a) Plants
b) Crickets:
c) Birds
d) Snakes:
e) Owl
45. How much energy from one trophic level is available to be passed up to the next level?
46. Suppose that the plants at the base of this enerzy pyramid contain 450,000 Calories of food
energy. If the crickets eat all the plants, how much energy would be available to the crickets as
first level consumers?
How many Calories are available to the birds?
How many Calories are available to the snakes?
How many Calories are available to the owl?
47. What happens to the number of organisms at each level of the pyramid starting from the base?
Explain why this happens.