I think the correct answer from the choices listed above is option B. Vector is the tool that is used to transfer a gene into an animal. The vector is a piece of DNA that is used to carry the specific segment of DNA you want transferred into the organism. Hope this answers the question.
<span>Physical Digestion - Physically breaking down (eg chewing)
Chemical digestion - chemically breaking down (eg chemicals in the stomach)</span>
Answer
That used to follow the movements of molecules in the cells.
Explanation:
