52. Ecosystems

In the context of energy flow through ecosystems, what happens to energy as it moves from primary producers to higher trophic levels?

In the context of energy flow through ecosystems, approximately how much energy is transferred from one trophic level to the next higher trophic level?

Which of the following best describes the amount of matter that cycles through a food web in an ecosystem?

Which of the following is true about the efficiency of energy transfer in an ecosystem?

What percentage of energy is typically transferred from one trophic level to the next in an ecosystem?

Sayid drew an energy pyramid. What does each section of the triangle represent?

The movements of energy and nutrients through living systems are different because:

What is the original source of almost all the energy in most ecosystems?

Why are producers always found at the lowest trophic level in an ecosystem?

Which of the following best describes how energy flows through a food web?

How does energy flow through an ecosystem?

In the context of energy flow through ecosystems, what role do plants primarily play?

Which of the following best describes the flow of energy through an ecosystem?

In the context of energy flow through ecosystems, what is the primary role of producers?

In an ecosystem, what percentage of energy captured by primary producers is typically lost as respiration?