Doe protein make up 90% of our body weight?

No. Protein is an important component of every cell in the body. Hair and nails are mostly made of protein, the body uses protein to build and repair tissues as well as to make enzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin, and blood.

He created a way of naming organisms based on genus and species.

Explanation:

He suggested a third domain to classify new types of organisms.