#1 should be your answer!
I'm pretty sure that each level decreases the amount of energy by a factor of 1/10 so for primary consumers there would be 100 units of energy.
please see the attached images. Hope this helps you.
During photosynthesis, the plant needs carbon dioxide and water-- both of which are released into the air during respiration, during respiration, the plant needs oxygen and glucose, which are both produced through photosynthesis
OLD COWS GO
OXYGEN/CARBON/GLUCOSE
Answer:
examples can be kelp and seaweed with their multi-cellular composition
Explanation: