Answer:
A
Explanation:
An isolated system can NOT exchange energy or matter with it's surroundings. This is why it is isolated.
Answer:
Adenine, Thymine, Guanine, and Cytosine
They possess complimentary paring. Meaning the one will only bind another, and will not bind with and other one
Explanation:
No it has grown slowly of the past years
Answer: D. Genetic mutation
Explanation:
For evolution to occur, there must be a genetic mutation in the genome of an organism such that a new allele is formed.
If this mutation occurred in the sperm and/or the ovum, the mutation will then be passed on through reproduction to the next generation. This leads to more of the subsequent generations having that mutation thereby leading to evolution.