Answer:
The human genome contains around 20,687 protein-coding genes. Different genes or instructions are read at different times in different cells in response to the requirements of our bodies. Each cell contains two sets of genes, one from your mother and one from your father.
Explanation:
The answer is A i believe
The major organ of the circulatory system that causes blood to flow through the body by its pumping action is the heart.
living things are alive and they eat and breath air. like so humans, plants, animals.
non-living things are not alive so they dont eat or breath air. for example sunlight, rocks, water, air
