Answer:
Each tooth is composed of dentine and pulp cavity.
Explanation:
Human teeth are made up of four different types of tissue: pulp, dentin, enamel, and cementum. The pulp is the innermost portion of the tooth and consists of connective tissue , nerves, and blood vessels, which nourish the tooth.By volume, 45% of dentin consists of the mineral hydroxylapatite, 33% is organic material, and 22% is water. Yellow in appearance, it greatly affects the color of a tooth due to the translucency of enamel. Dentin, which is less mineralized and less brittle than enamel, is necessary for the support of enamel.
Im pretty sure it can either be E or B
Answer:
Most people have two kidneys, which are located near the back of the body, under the ribs, on each side of the spine. Kidneys filter waste out of the bloodstream, which is passed out of the body as urine.
Explanation:
