EVERYDAY SCIENCE

Detailed explanation-1: -A food chain is a series of events in which one organism eats another and obtains energy. The first organism in a food chain is always a producer. The second organism, called a first-level consumer, eats the producer. The next consumer, called a second-level consumer, eats the first-level consumer.

Detailed explanation-2: -Final answer: An interaction in which one organism captures and eats another organism is called predation.

Detailed explanation-3: -A food chain describes how energy and nutrients move through an ecosystem. At the basic level there are plants that produce the energy, then it moves up to higher-level organisms like herbivores. After that when carnivores eat the herbivores, energy is transferred from one to the other.

Detailed explanation-4: -Answer and Explanation: Organisms that obtain their energy by feeding on other organisms are called heterotrophs. Autotrophs are living organisms that are able to make their own food through photosynthesis, and these are plants and algae. Organisms that must consume or absorb their nutrients are called heterotrophs.

Detailed explanation-5: -A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web. Producers, who make their own food using photosynthesis or chemosynthesis, make up the bottom of the trophic pyramid.