Neutral mutations have the significance of adding genetic variety to a population.
Answer:
We can't examin the specimen in tbe absence of lght. We can not study the internal structures.
Explanation:
Answer:
1. Stem cells are unspecialized cells. For example, stem cells can become blood cells, brain cells, or skin cells
2. Embryonic stem cells are different from other stem cells due to their being able to generate all cell types. Stem cells found in adults can only make a few types of stem cells.
3. They are first developed into specific adult stem cells and then injected into the damaged area to begin repairs.
Complex nutrients are digested and then absorbed into the bloodstream as monomers.
Nutrients from food can be used in the body only when are broken down to their basic units: carbohydrates in monosaccharaides, lipids in free fatty acids, proteins in amino acids and nucleic acids in nucleotides.
Those molecules together with water and minerals from the diet, are absorbed in the small intestine. The absorbed molecules are then transported into the bloodstream and carried to different parts of the body for usage, storage or chemical transformation. Some of the macromolecules are broken down in mouth (e.g. starch), or in stomach by the enzymes.
Your answer should be A . I hope It’s correct
