Https://www.sciencelearn.org.nz/resources/1885-body-systems
It has all the answers to every system you need. I didn’t feel like typing it all out. But hope that helps
Adoption, and have a serogacy (not sure if that's how you spell it)
B. Inflammation occurs when red blood cells release chemicals into the blood.
Inflammation is the body’s normal response to fight injuries and infections. Immune cells, clotting proteins and signaling molecules are released when a pathogens and irritants. The cardinal signs of acute inflammation are pain, redness, immobility, swelling and heat of damaged area.