True.
In the upper layers of the atmosphere, it blocks UV radiation from the sun; however, in the lower layers, it is a pollutant.
found that animals are composed of cells is Theodor Schwann
found that plants are composed of cells is Matthias Schleiden
looked at cork through a compound microscope is Robert Hooke
declared that all living cells can only come from other living cells called living cells "animalcules" is Rudolph Virchow
Answer:
B 20 amino acids, hundreds of proteins
Explanation:
I hope this helped :)
Answer:
a type of substitution where ect.
Explanation:
i think sorry if i'm wrong.
