The aorta carries oxygen rich blood away from the heart.
The pulmonary artery transports deoxygenated blood from the heart to the lungs.
The inferior vena cava carries deoxygenated blood from the lower body to the heart.
The coronary artery branches from the aorta and provide oxygen to the heart muscles.
The body contains about a trillion cells
Answer:
A hypothesis is a tentative statement that proposes a possible explanation to some phenomenon or event. A useful hypothesis is a testable statement, which may include a prediction. A hypothesis should not be confused with a theory.
Explanation:
Over time, rain and weathering causes rocks to release phosphate ions and other materials. This inorganic phosphate is then distributed into the soil and water. plants take up inorganic phosphate from the soil. the plants may then be consumed by animals. Once in the plants or animal, the phosphate is incorporated into organic materials that break down organic matter to inorganic forms of phosphate. this process is known as mineralisation. Phosphate in soil can end up in waterways and eventually oceans. once there, It can be incorporated into sediments over time.
