Why human's are not autotrophs and why?

Answer 1

Autotrophs are 'self feeders', this means they do not rely on other organisms to generate food. Example: plants and algae.

Heterotrophs live on compounds produced by autotrophs. Example: animals.

Humans are not autotrophs because we can not generate our own food...

Answer 2

by definition, an autotroph produces its own nutrition (e.g., photosynthesis, chemosynthesis). mushrooms feed off of living or dead organisms. they can secrete digestive enzymes onto dead biomatter (e.g., leaves, twigs, logs) and absorb the resultant organic nutrients. they can act as paracites and feed off of the metabolism of living plants of animals. they can also attack living organisms. some form symbiotic relationships with algae; these are lichens. some of the more extreme fungi out there can break down the lignin in wood, the protein keratin (of which hair is made); some can metabolize wall paint, others feed on kerosene and aircraft fuel. all in all, THEY DO NOT MAKE THEIR OWN NUTRITION

Answer 3

If there was no sunlight autotrophs wouldn't be able to synthtise food for themselves, no autotrophs means no plant eaters, no plant eaters means no carnivores ect. in short, the feeding chain would colapse.

Reptiles are cold-blooded animals, meaning they need to sunbath daily to warm themselves. Thanks to the heat they can maintain proper metabolism and not freeze to death.

Apart from photosynthesis there are other light dependent reactions. For examle, in humans' skin biosynthesis of vitamin D can't occure if there is no sunlight.

Also many species use sight as their premier sence. If it wasn't for the sunlight they couldn't use eyes to find food, shelter ect. which would make living hard for them.

Answer 4

NO. Autotrophs are the producers in a food chain, such as plants on land or algae in water

Answer 5

cuz they dont have chloroplast like plants, yo.

Answer 6

yes