Agrass starts with 30,000 kj of energy. how much energy would a cheetah acquire after it ate a zebra that consumed the grass?

300 KJ

Explanation:

As per the given details following food chain is formed -

Grass ---> Zebra -----> Cheetah

In a food chain, all the organism belong to a trophic level. The amount of energy passed on from one trophic level is just % of the energy at its previous trophic level.

By this concept, when zebra eats the grass, only % of energy of grass is transferred to zebra.

Thus, the energy obtained by zebra after eating grass KJ

KJ

When cheetah eats zebra , % of energy of zebra is transferred to Cheetah.

Thus, the energy obtained by Cheetah after eating zebra KJ

KJ

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.