ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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neither
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represents a 90% reduction in energy
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both
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is called a trophic level.
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Detailed explanation-1: -Each food chain is a diagram including a series of arrows, each pointing from one organism to another and each organism or step represents a trophic level. For example, the producers form the first trophic level, herbivores feeding on the producers directly form the second trophic level and so on.
Detailed explanation-2: -Roughly speaking, these levels are divided into producers (first trophic level), consumers (second, third, and fourth trophic levels), and decomposers. Producers, also known as autotrophs, make their own food. They make up the first level of every food chain. Autotrophs are usually plants or one-celled organisms.
Detailed explanation-3: -The various steps in a food chain are called trophic levels.
Detailed explanation-4: -The autotrophs form the first trophic level, the herbivores form the second trophic level, carnivores form third and fourth trophic levels.
Detailed explanation-5: -Food chains generally consist of only three or four step.