Why is each level of the energy pyramid smaller than the level directly below it?
(1 point)
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Because about 10% of the energy is converted to heat when organisms become ill and another 10% when they die.
Because the sizes of each level show that 10% is consumed by
organisms at that level.
Because 10% of the energy at each level moves to the next level and some additional energy is converted to heat.
Because 90% of the energy is passed on to the next level to be used by the organisms there.
What is the difference between a consumer and a producer? (1 point)
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o Consumers are organisms that eat both plants and animals. Producers
are organisms that eat only plants.
o Consumers are organisms that eat other organisms. Producers are organisms that makes their own food using the energy from the sun.
o Producers are organisms that eat both plants and animals. Consumers
are organisms that eat only plants.
o Producers are organisms that eat other organisms. Consumers are organisms that make their own food using the energy from the sun.
Producers are organisms that make their own food using the energy from the sun. Consumers are organisms that eat other organisms.
Which type of organism is the first organism in an energy pyramid or food chain?
(1 point)
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O primary consumer
• secondary consumer
O tertiary consumer
• producer
The first organism in an energy pyramid or food chain is a producer.
The correct answer is: "Because 10% of the energy at each level moves to the next level and some additional energy is converted to heat."
The reason each level of the energy pyramid is smaller than the level below it has to do with the way energy flows through an ecosystem. The energy pyramid represents the transfer of energy from one trophic level to the next.
At each trophic level (such as producers, primary consumers, secondary consumers, etc.), organisms acquire energy by consuming organisms from the level below. However, during this transfer of energy, some energy is lost as heat due to metabolic processes and other life functions. This amounts to about 10% of the energy being lost as heat.
Additionally, not all the energy is transferred from one level to the next. Some energy is utilized by organisms at each level for their own growth, movement, reproduction, and other biological processes. This means that only a portion of the energy is available for consumption by organisms at the next trophic level.
As a result, the energy available decreases as you move up the energy pyramid, causing each level to be smaller than the level directly below it. Overall, about 90% of the energy is passed on to the next level, while the remaining 10% is lost as heat.