Answer:
1 living organisms are composed of one or more cells.
2 The cell is the basic unit of structure and organization in organisms.
3 Cells arise from pre-existing cells.
The atmosphere
Is not a reservoir for phosphorus.
Answer:
vha sa unhone nikal dia(≧▽≦)(≧▽≦)(≧▽≦)
Answer:
5 bases
Explanation:
If there are 17 amino acids and only 2 bases that can be combined in order to make a codon then:
for 4 bases is 16 and it is not enough combination for all 17 amino acids
for 5 bases is 25 combinations (meaning that more than one codon could code for the same amino acid).
Physical Weathering in Nature. When water in a river or stream moves quickly, it can lift up rocks from the bottom of that body of water. When the rocks drop back down they bump into other rocks, and tiny pieces of the rocks can break apart. Many rock surfaces have small crevices on them.
Ex: Unloading.