Answer:
[ANSWER]
Explanation:
When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it active transport.
Proximity, similarity, closure and simplicity
Answer:
Cyanobacteria are microscopic organisms found in all kinds of water. They are single-celled organisms and produce their own food from sunlight via photosynthesis. Cyanobacteria are important to evolution because they developed the oxygen atmosphere we live in by producing waste from cyanobacteria. Plants also evolved from Cyanobacteria.
Well it couldnt be an animal cell becuase animal cells dont have cell walls. And plant cells have a cell membrane not a plasma membrane so it should be a prokaryotic cell.
