Question

Food chains never consist of more than 4 or 5 trophic levels. The reason for this is (A) energy is lost along the food chain (B) there are fewer primary consumers in the world than secondary consumers (C) producers are always shown on the bottom of any food chain (D) pioneer organisms compete with consumers (E) all of the above are correct

Name: Problem 13, Chapter 6: SAT Biology E/M
Uploaded: 2020-10-18T04:50:10-08:00
Duration: 1 min 27 s
Channel: Joanna Quigley
Description: Food chains never consist of more than 4 or 5 trophic levels. The reason for this is (A) energy is lost along the food chain (B) there are fewer primary consumers in the world than secondary consumers (C) producers are always shown on the bottom of any food chain (D) pioneer organisms compete with consumers (E) all of the above are correct

   Food chains never consist of more than 4 or 5 trophic levels. The reason for this is
(A) energy is lost along the food chain
(B) there are fewer primary consumers in the world than secondary consumers
(C) producers are always shown on the bottom of any food chain
(D) pioneer organisms compete with consumers
(E) all of the above are correct

SAT Biology E/M

Deborah Goldberg 5th Edition

Chapter 6, Problem 13

Instant Answer

Solved by Expert Joanna Quigley

10/18/2020

Step 1

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. The levels in the food chain are called trophic levels. Show more…

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Food chains never consist of more than 4 or 5 trophic levels. The reason for this is (A) energy is lost along the food chain (B) there are fewer primary consumers in the world than secondary consumers (C) producers are always shown on the bottom of any food chain (D) pioneer organisms compete with consumers (E) all of the above are correct

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Key Concepts

Trophic Levels

Trophic levels define the hierarchical stages in a food chain where organisms share a similar position in terms of energy intake and diet. The limitation in the number of trophic levels is due to the cumulative energy loss that occurs as energy is transferred from one level to the next.

Energy Transfer Efficiency

Energy transfer efficiency refers to the proportion of energy that is passed from one trophic level to the next. With each step, a significant amount of energy is lost due to heat production, metabolic processes, and waste, which fundamentally limits the number of viable trophic levels in an ecosystem.

Food Chains

Food chains represent the sequence through which energy and nutrients are transferred from one organism to the next within an ecosystem, starting from primary producers and moving through various levels of consumers. These chains help illustrate the interactions and dependencies among different species.

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