The answer for your question is B
It is a Secondary source because it is conducted by the conductor.
it is determined by limiting factors for example if I had a small apartment I couldn't fit 50 people in there so the carrying capacity would be lower that that because of the limiting space.
Answer:
Depending on changes, that occur with DNA, all types of DNA mutations can be divided into two main groups:
gene mutation;
chromosomal mutation.
Explanation: