I think the answer to this is structure C
First of all, we must understand what we are looking for. We know that producers are basically organisms which make their own food. Therefor some examples are:
1) Algae (creates its own food using energy from the sun)
2) Plants (creates its own food using energy from the sun)
3) Phytoplankton
I hope this helps!
Both involve gaining a positive effect from a source which becomes harmed.
Example: a predator eats it's prey for food
A parasite like a tape worm feeds off the nutrients in your body and makes the person sick
Once you have stopped for a school bus, do not pass until the driver signals you to proceed, the red lights stop flashing, or the bus starts moving ahead. Whenever a vehicle ahead of you stops to let a pedestrian pass in front of you, you should stay in line and until the vehicle ahead proceeds.
It gives structure:) and I plz get Brainly:):(