What are the structure and function of ecosystem? What are the stages of energy flow in an ecosystem? Describe about different types of food chain and food pyramids.
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Answer:
1. What are the structure and function of the ecosystem?
The ecosystem is the functional unit of the environment system. The abiotic components provide the matrix for the synthesis of organic components. This process involves the exchange of energy.
2. What are the stages of energy flow in an ecosystem?
Energy flow can be described through food chains as the transfer of energy from one organism to the next, beginning with the producers and moving up the chain as organisms are consumed by one another. Another way to display this type of chain or simply to display the trophic levels is through food/energy pyramids.
Energy flow can be described through food chains as the transfer of energy from one organism to the next, beginning with the producers and moving up the chain as organisms are consumed by one another. Another way to display this type of chain or simply to display the trophic levels is through food/energy pyramids.
Because energy flow is inefficient, the lowest level of the food chain is almost always the largest in terms of both energy and biomass. That's why it appears at the base of the pyramid; that's the level that's the largest. As you move up each trophic level or each level of the food pyramid, both energy and biomass decrease, which is why levels narrow in number and narrow visually as you move up the pyramid.
3. Describe the different types of food chain and food pyramids.
In many ecosystems, the base, or foundation, of the food chain consists of photosynthetic organisms (plants or phytoplankton), which are called producers. The organisms that consume the producers are herbivores: the primary consumers. Secondary consumers are usually carnivores that eat the primary consumers. Tertiary consumers are carnivores that eat other carnivores. Higher-level consumers feed on the next lower trophic levels, and so on, up to the organisms at the top of the food chain: the apex consumers. the Chinook salmon is the apex consumer at the top of this food chain.
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