This should be correct, but it is not a 100% guarantee on my part.
A decrease in the population of bears
Answer:
Are you talking about bacteria type viruses? because that's what I would assume.
Explanation:
Well, all viruses have a core of genetic material like RNA or DNA.
Viruses can have different families, geonomic makeup, host range and transmission mechanism.
I hope this helped in a way.
Answer:
C) It is a pair of alleles that codes for a trait
Explanation:
Genes are made out of DNA and they determine the characteristics and traits one has.
