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

a grass starts with 30,000 kj of energy. how much energy would a cheetah acquire after it ate a zebra that consumed the grass?\no 30 kj\no 300 kj\no 3,000 kj\no 30,000 kj

a grass starts with 30,000 kj of energy. how much energy would a cheetah acquire after it ate a zebra that consumed the grass?\no 30 kj\no 300 kj\no 3,000 kj\no 30,000 kj

Answer

Answer:

A. 30 kJ

Explanation:

Step1: Recall energy - transfer rule

In a food - chain, only about 10% of the energy is transferred from one trophic level to the next.

Step2: Calculate energy transfer from grass to zebra

The grass has 30,000 kJ of energy. The zebra (primary consumer) that eats the grass will get 10% of 30,000 kJ. So, $30000\times0.1 = 3000$ kJ.

Step3: Calculate energy transfer from zebra to cheetah

The cheetah (secondary consumer) that eats the zebra will get 10% of the energy the zebra has. So, $3000\times0.1=30$ kJ.