Answer:
Your circulatory system delivers oxygen-rich blood to your bones.
Meanwhile, your bones are busy making new blood cells.
Working together, these systems maintain internal stability and balance, otherwise known as homeostasis.
Explanation:Brainliest plz
Antigens are any molecules that elicit adaptive immune response. Antigens protrude from pathogens or other intruding substances. Antibodies are proteins found in blood plasma that attach to one particular kind of antigen and help to counter its effects.
Answer:
Maintaining a healthy body weight is not too hard and neither it is too easy.
It is very important to maintain a healthy diet that consists of balanced proportions of vegetable, fruits and protein.
In addition, it is essential to exercise every single day for a set amount of time to stay active and healthy. otherwise the body will get used to no work and the food will add to gaining weight instead of balancing it with exercise.
