The answer to the question is b
I think it’s evaporation proton
Answer:
Schleiden had even supposed the nucleus to be a constituent part of the wall, sometimes lying enclosed between two layers of its substance, and Schwann quoted this view with seeming approval. Schwann believed, however, that in the mature cell the nucleus ceased to be functional and disappeared.
Answer:
A.
Explanation:
because it studies the key word Astro which means astrophysics which is stars good luck