Answer:
The Rats.
Explanation:
I think it would be the rats because its a common pest and who has chickens around their house?
I think it is D. because the sun's radiant energy gives life to the earth life forms.
Smoking and drinking can cause major birth defects. It can also cause the baby to be very sick when it is born, and have a near death experience.
depending on the amount of intake, the baby could also be born addicted to either one. It is very dangerous to drink or smoke during the development of a child.
Hope this is helpful!:))))
When a single copy of a disease allele doesn't result in a disease but instead is good for the person or organism that carries it, we say that allele has a heterozygote advantage. In other words this occurs when heterozyhotes have increased fitness over both homozygotes. A good example is sickcle cell trait, which protects against malaria in heterozygotes, but causes a deadly disease in homozygotes.
