Answer:
I would guess the law of superposition
Explanation:
that law means that the bottom is the oldest
Each one performs a specialized task for the cell. If they were without even one, the cell would die.
Answer:
BETTER than it is now for humans. Greenhouse gasses are bad in any amount.
Explanation:
The phenotype is the type of trait that can be physically observed in an individual. Examples include hair colour, eye colour or height.
Answer:
variations says it all...
