Adult Bone Marrow has stem cells that are not as "good" as embryonic ones but they still can become red blood and skin cells
Answer:
hmm lemme think bur it will take a while
Answer:
A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means. A compound is not a pure substance because it is not an element, and only elements are pure substances.
Soil composition refers to the nutrients and various other substances present in the soil. These are categorized into four basic categories: water, air, organic matter and minerals.
