What are the roles of consumers? Select two options.

to create usable food energy
to balance the number of producers in an ecosystem
to break down dead organisms
to eat other organisms
to provide energy for producers

What happens whenever a net force acts on an object

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Which of these parts of the membrane large moecules pass through it ?