Energy flow in ecosystem
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Energy flow in ecosystem
All living things need energy.
Some biotic factors get their energy from the sun. Others eat other biotic factors
As a result, energy flows in ecosystems.
This energy flow can be represented by food chains and food webs.
For most ecosystems, the sun is the ultimate source of energy
As you move from one organism to another, you move up trophic levels.
For example, the move from the mollusk to the white bass would be a trophic level
Producers that use photosynthesis to create their energy are a major energy source in an ecosystem. Plants and algae are examples of producers.
As consumers eat these producers, carbon bonds are broken and energy is released, which is transferred from one level to another.
When you move from one trophic level to another, you lose 90 percent of the energy.
This is known as the 10 percent rule.
For example, if you start with 1000 Joules and a grasshopper eats the plants, only 10 Joules are transferred, and a bird eats the insect. 1 Joule is transferred
Where does this energy go?
Most of the energy is lost as heat
The energy flow in an ecosystem follows the laws of thermodynamics
The first law states that energy cannot be created or destroyed in an isolated system, but it can be converted from one form to another
All living things need energy.
Some biotic factors get their energy from the sun. Others eat other biotic factors
As a result, energy flows in ecosystems.
This energy flow can be represented by food chains and food webs.
For most ecosystems, the sun is the ultimate source of energy
As you move from one organism to another, you move up trophic levels.
For example, the move from the mollusk to the white bass would be a trophic level
Producers that use photosynthesis to create their energy are a major energy source in an ecosystem. Plants and algae are examples of producers.
As consumers eat these producers, carbon bonds are broken and energy is released, which is transferred from one level to another.
When you move from one trophic level to another, you lose 90 percent of the energy.
This is known as the 10 percent rule.
For example, if you start with 1000 Joules and a grasshopper eats the plants, only 10 Joules are transferred, and a bird eats the insect. 1 Joule is transferred
Where does this energy go?
Most of the energy is lost as heat
The energy flow in an ecosystem follows the laws of thermodynamics
The first law states that energy cannot be created or destroyed in an isolated system, but it can be converted from one form to another
The second law states that this energy conversion is never completely efficient.
As a result, most of the energy is lost as heat.
There you go. The energy flow in an ecosystem
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