Question

different between autotrophic and herotrophic nutrition ​

Answer 1

Explanation:

Autotrophs and Heterotrophs Key Points

Autotrophs are organisms that can prepare their own food. On the contrary, heterotrophs depend on autotrophs and other organisms for nutrition. Green plants and algae contain chlorophyll that helps them to prepare food with the help of sunlight.

Answer 2

Answer:

Autotrophs make their own food. Typically, we think of plants as autotrophs, and this is true, but there are other kinds as well. Plants, algae, phytoplankton, and some bacteria are photosynthetic, meaning they use sunlight to make sugar, which they then use to make energy. Photosynthetic organisms are green because they contain a pigment called chlorophyll that does photosynthesis. Some other types of bacteria are also autotrophic, but they are chemosynthetic. They use the energy stored in chemicals, usually released from deep sea vents, to make their food, and then energy.

Green leaves make food through photosynthesis

leaf

Autotrophs form the basis of all food webs. They gather energy from inorganic sources, like chemicals or the sun, and convert it into a form that other animals can use. Energy is transferred from the autotrophs to consumers that eat them, and then to carnivores that eat those animals. Without autotrophs, all of our food webs would collapse.

Since there is so much energy available to this layer of the food web, autotrophs have the greatest number of organisms in an ecosystem. Think of how many blades of grass there are in a field compared to how many bears you typically see. Autotrophs also have an easier time finding a suitable environment. All they need are the right conditions and plenty of sunlight or chemicals to survive and flourish.

Heterotrophs

Heterotrophs depend on other organisms for food. Some heterotrophs, called herbivores, only eat plants. The herbivores only get 10% of the energy available from the autotrophs, because the producers used 90% of their energy to grow and reproduce. So, there are substantially fewer herbivores in an ecosystem compared to autotrophs since they get less energy. Consider our field. There are millions of blades of grass, but only one herd of about twenty deer.

Omnivores eat plants too, but they also can eat meat. These animals might consume the herbivores or plants. If the omnivores are eating the herbivores, they get even less energy. They only get 10% of the energy the herbivores get, so they end up with only 1% of the energy that was present in the autotrophs. Thus, there are going to be even fewer of these heterotrophs compared to the herbivores. Carnivores only eat meat. Carnivores are typically the smallest group in an ecosystem, since there is even less energy available as you move up the food chain. Carnivores need a steady diet of other heterotrophs, so they will only be able to live in locations that contain prey, unlike plants which only require sunlight and water.