The very primitive organism is the oldest because, over time, organisms gradually evolved into more complex organisms. First came the primitive organism, then it evolved into the more complex one, or the younger fossil.
I believe another term for Natural Selection, based off of the answers provided, I would say C, Survival of the Fittest.
Answer:
3.
Explanation:
As a hypothesis is used as an experiment in order to define the relationship between two variables, and to find the answer(s) to a question while a formalized one forces us to brainstorm about the results in which we should search for in an experiment.
This can be caused by over grazing from the livestock or even wild animals such as rabbits. Rabbits are known to breed very quickly and can destroy an ecosystem with their sheer numbers.
Mitosis is when a DNA error, aka mutation, occurs in a body cell. When cells divide, it needs a copy of the DNA. During DNA replication, that error can cause the instructions for building proteins to differ. The change can not affect offspring. Meiosis is the same situation, but in sex cells. This can be transferred to offspring.