Answer:
all of these are echinoderms
He found a nuclear structure (cells) in plants by looking through a microscope
A. The amount of carbon dioxide a person releases into the atmosphere
<span>Epithelium made up of a single layer of flattened scalelike cells</span>
Answer:
A. Producer and consumer
Explanation:
The relationship between snails and elodea is symbiotic in that the snail eats algae and produces carbon dioxide. The elodea takes in the carbon dioxide and, through photosynthesis, creates oxygen, which the snail and every living thing in the tank uses to breathe.