Question

1. what are the primary functions of the respiratory system? 4) what are the cell(s), tissues, and organ(s) that are a part of the circulatory system? 5) what are the primary functions of the circulatory system? 6) explain the process of gas exchange for oxygen and co2 between alveoli and capillary. 7) what are the cell(s), tissues, and organ(s) that are a part of the digestive system?

Explanation:

1. The primary functions of the respiratory system are to take in oxygen from the air and release carbon - dioxide. It also helps in speech production and maintaining the body's acid - base balance.
2. Cells in the circulatory system include red blood cells, white blood cells, and platelets. Tissues include endothelial tissue lining blood vessels and cardiac muscle tissue in the heart. Organs are the heart and blood vessels (arteries, veins, and capillaries).
3. The primary functions of the circulatory system are to transport oxygen, nutrients, hormones, and waste products throughout the body, maintain body temperature, and help in immune function.
4. Oxygen diffuses from the alveoli (high concentration in alveoli) into the capillaries (low concentration in capillaries) due to a concentration gradient. Carbon - dioxide diffuses from the capillaries (high concentration in capillaries) into the alveoli (low concentration in alveoli) following the same principle of diffusion.
5. Cells in the digestive system include epithelial cells. Tissues include epithelial tissue, muscular tissue, and connective tissue. Organs are the mouth, esophagus, stomach, small intestine, large intestine, liver, gall - bladder, and pancreas.

Answer:

1. To take in oxygen and release carbon - dioxide, aid in speech, and maintain acid - base balance.
2. Cells: red blood cells, white blood cells, platelets; Tissues: endothelial tissue, cardiac muscle tissue; Organs: heart, arteries, veins, capillaries.
3. Transport of substances, temperature regulation, immune function.
4. Oxygen diffuses from alveoli to capillaries, carbon - dioxide diffuses from capillaries to alveoli due to concentration gradients.
5. Cells: epithelial cells; Tissues: epithelial, muscular, connective; Organs: mouth, esophagus, stomach, small intestine, large intestine, liver, gall - bladder, pancreas.