3,000 kilijoules.
You go from 300,000 at the first trophic level to 30,000 at the second trophic level, and finally 3,000 at teh third.
Answer:
If the solute carries a net charge, however, both its concentration gradient and the electrical potential difference across the membrane, the membrane potential,influence its transport. ... Thus, transport by carriers can be either active or passive, whereas transport by channel proteins is always passive.
Explanation:
The food web shows who eats who or what and the pyramid ranks them
