2) Which term best describes energy transfer between trophic levels?

A - average

B - efficient

C - inefficient

D - high

3) Where would a primary producer be located in the food chain?

A - first step

B - middle step

C - last step

D - each step

1. Inefficient would be the best term to describe the energy transfer between the trophic levels. This is because the energy decreases as it moves up trophic levels since energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency measures the amount of energy that is transferred between trophic levels.

2. The answer is first step. Primary producers are organisms in an ecosystem that produce biomass from inorganic compounds. They are organisms, like plants, that can take inorganic molecules such as carbon dioxide and convert them into organic molecules such as carbohydrates.