The answer for this question should be c because an ecosystem is. Agrassland
<span>An
atom with an atomic number of 12 has 12 protons. Because the mass
number is the sum of the protons and neutrons, the mass number would
need to be at least 12. I hope this helped!
</span>
It modifies, packages,and sorts proteins that will be secreted into the cell. So synthesis of proteins.
The answer is D. Quaternary
1. Temperate deciduous forests
2.?
3.savannas
4.temperate grassland
