Helpppppppppp!!!! ecosystem??

Question

Most green algae are able to obtain carbon dioxide from the environment and use it to synthesize organic compounds.This activiity is an example of

1) cellular respiration

2) autotrophic nutrition

3) heterotrophic nutrition

4) heterotrophic respiration

Organisms that eat goats obtain less energy from the goats than the goats obtain from the plants they eat.This is because the goats

1) pass on most of the energy to their offspring

2) covert solar energy to food energy

3) store all of their energyin milk

4) use energy for their own metabolism

Answer 1

2 and 4

Answer 2

I would go with 4 for the first one and 4 for the second