Answer:
1: C
2: T
3: G
4: T
5: A
Explanation:
G and C are matching base pairs and A and T are matching.
Pre-modern-high birth rate and death rate
Mature industrial-low birth rates, death rates are constant
Industrialization-high birth rate and low death rate
A. Contraction because when you contact a muscle cell, it shortens. When you expand, it gets longer.