Answer:i'm pretty sure its C: into cells
Explanation:
New technology drive progress in many research fields,including cell biology.
Meaning: A dark color or material obtained by heating organic matter or wood.
A human needs approximately 2-5 percent of protein for the typical energy needed daily. Protein is one of the most important building blocks in the body. It helps the bones, muscles, skin, blood, and cartilage. A humans nails and hair are made of protein. The protein your body uses also repairs tissues and build new ones.
The correct answer would be petting infected areas, vaginal intercourse, oral intercourse, and intercourse.
Glad i could help(: