Answer:
plants, animals, microorganism and bacteria
Explanation:
Answer:
Simple organisms, such as theamoeba and earthworm, have a moist, permeable external surface. Oxygencan pass into them through this surface by diffusion. A large surface area is needed for effective gas exchange - so larger, more complex, organisms have special organs such as gills and lungs.
Explanation:
Answer:
i don't know lol i can't really se it becise is like i don't know
It’s c is the correct answer to your question
