B. Phylogeny. Phylogeny has a similar meaning to evolutionary being a synonym<span />
Answer:
The lowest region of the atmosphere
Explanation:
What google says:
the lowest region of the atmosphere, extending from the earth's surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.
When muscles are required to work harder than they're used to or in a different way, it's believed to cause microscopic damage to the muscle fibres, resulting in muscle soreness or stiffness.
The number of electrons of a neutral atom always equals the number of protons.
