Answer:proteins
Explanation:
Proteins are large biopolymer molecules that are made up of repeating monomer units called amino acids.
we can't choose what color we are so they can't change their color I dont know
1. photosynthesis
2. algae
3. chlorophyll
4. herbivore
Answer:
Oxygen is a colourless, odourless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere.
Answer:
A
Explanation:
Today, the atmosphere holds about 21 per cent oxygen. ... When the first simple organisms appeared in the oceans more than 3.5 billion years ago, the atmosphere was mostly nitrogen, hydrogen, water vapor, and carbon dioxide
