Mainly to make life easier.
if one layer changes than scientists don't need to change all of their data.
it also helps keep organized.
hope this helped
ebs02
:)
Explanation:
Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.
The body attacks particular foreign invaders and <span>immunity is adaptive.</span>
3. is Phytoplankton
4. Plankton produce their own food thru photosynthesis or lassoing energy
Hit me up with the Like Love :)
What are my options I only see the question?