Heterotrophs obtain chemical energy from what ?

Heterotroph obtain chemical energy from other organisms.

Explanation:

Heterotroph are the organisms which are unable to make their own food like plants. They get energy from feeding on other animals. Some animals are herbivores which feed on plants and take energy from it. Some organisms feed on herbivores are called carnivorous animals. Some animals are omnivores which feed on both plants and animals.

Examples of heterotrophic organisms are cow, lion and human etc.

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.