The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
Hope this help
Answer:
Explanation:
hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract and spleen to the liver. This blood are usually rich in nutrient because it contains extraction from digested materials or food substances in the gastrointestinal tract and it is processed in the liver for removal of toxins before the blood returns to the heart.
Answer:
Sister chromatids on the top and Chromosomes on bottom
The suns role in the water cycle is to heat the water enough so that it evaporates. This allows the water to rise up into the sky where it is then cooled and condensed into clouds, once the clouds are too dense it rains and the cycle begins again with the sun heating the water. The sun allows the cycle to continue infinitely
