Mutations are changes in the DNA of an organism. Examples of beneficial mutations include HIV resistance
Answer:
they use to live
Explanation:
As they breath out carbon dioxide the plants take in the carbon dioxide and make air with it. Animals also use air to do their day to day things like eat.
Answer:
It is thin tissue that lines the alveoli
Hope this helps.
Answer:
lack of resources, and mating
Explanation:
they may go ictenct
