Producers provide oxygen gas as a result from photosynthesis - something that almost all other organisms at high trophic levels need
Answer:
I dont know this so I looked this up, here is the results.
They are eukaryotic, which means they have a nucleus. Most have mitochondria. They can be parasites. They all prefer aquatic or moist environments.
Explanation:
The gravitational force would increase, as the mass is increasing.
Perennial Shrubs I know it is late.
