In a grassland ecosystem, grass is the producer. The grass is eaten by rabbits. The rabbits are eaten by foxes. And the foxes are eaten by hawks. If the grass produces 83,721 kcalm2yr
83
,
721
k
c
a
l
m
2
y
r
of energy, how much energy will the apex predator receive?(1 point)
Responses
837.21 kcalm2yr
837.21
k
c
a
l
m
2
y
r
837.21 kcalm2yr
837.21
k
c
a
l
m
2
y
r
8.3721 kcalm2yr
8.3721
k
c
a
l
m
2
y
r
8.3721 kcalm2yr
8.3721
k
c
a
l
m
2
y
r
8,372.1 kcalm2yr
8
,
372.1
k
c
a
l
m
2
y
r
8,372.1 kcalm2yr
8
,
372.1
k
c
a
l
m
2
y
r
83.721 kcalm2yr
83.721
k
c
a
l
m
2
y
r
83.721 kcalm2yr
The energy flow in an ecosystem follows the 10% rule, meaning that only about 10% of energy is transferred between trophic levels. Therefore, the apex predator, in this case, the hawk, will receive 10% of the energy available to the foxes.
83,721 kcalm2yr * 0.1 = 8372.1 kcalm2yr
Therefore, the energy the apex predator will receive is 8372.1 kcalm2yr.