Answer:
what do you need help with?
Explanation:
It looks like you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer <span>
Cell wall
Support (grow tall)
Protection
<span>allows H2O, O2, CO2 to diffuse in & out of cell</span></span>
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
Answer:
D
Explanation:
The first trophic level is the producer, which makes its own food, so it has to be a plant / algae / cyanobacteria