Choose all the answers that apply. consumers release oxygen into the air release carbon dioxide into the air get energy by eating producers can be carnivores, herbivores, or omnivores are the start of all food chains

There are five options in the question , let me arrange it for you then answer.

1) release oxygen into the air

2)release carbon dioxide into the air

3)get energy by eating producers

4)can be carnivores, herbivores, or omnivores

5)are the start of all food chains

Correct answers are : 2, 3 and 4

Explanation:

Consumers are animals so they respire and release CO2 into the air.

Primary consumers get energy by eating producers.

Consumer can be carnivore, herbivore, or omnivore depending whether they're primary, secondary or tertiary consumers.

Producers are the start of all the food chains not the consumers.

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;

it would be d). more resources must be obtained to attain that combination of goods and services