The theory of continental drift was given a scientific status during the:
1960's.
Answer:
D
Explanation:
collisions between molecules and atoms push on the container creating pressure
The specialization of cell in its broad sense,growth also include the phase of cell development
Https://www.ncbi.nlm.nih.gov/books/NBK10039/
I believe its D. It becomes more difficult for the cell to get enough oxygen and nutrients.
