NEET BIOLOGY

Detailed explanation-1: -Consumers constitute the upper trophic levels. Unlike producers, they cannot make their own food. To get energy, they eat plants or other animals, while some eat both. Scientists distinguish between several kinds of consumers.

Detailed explanation-2: -Heterotrophs: It is an organism that depends on other plants or animals for energy and nutrients. They are consumers. The living organisms that cannot make their own food are called Heterotrophs.

Detailed explanation-3: -Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs. Heterotrophs occupy the second and third levels in a food chain, a sequence of organisms that provide energy and nutrients for other organisms.

Detailed explanation-4: -Producers, who make their own food using photosynthesis or chemosynthesis, make up the bottom of the trophic pyramid. Primary consumers, mostly herbivores, exist at the next level, and secondary and tertiary consumers, omnivores and carnivores, follow.

Detailed explanation-5: -Organisms that can not synthesise their own food are called heterotrophs. Heterotrophs depend directly or indirectly on autotrophs for their food. They do not have photosynthetic organelles as autotrophs. So, they can not synthesise food.