Answer:
The immune response is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.
Information
The immune system protects the body from possibly harmful substances by recognizing and responding to antigens. Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. Nonliving substances such as toxins, chemicals, drugs, and foreign particles (such as a splinter) can also be antigens. The immune system recognizes and destroys, or tries to destroy, substances that contain antigens.
Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens. Your immune system learns to see these antigens as normal and usually does not react against them.
Answer: Aerobic
Explanation: Aerobic means that it involves or requires oxygen.
Food is pushed through the digestive tract by muscle contractions called
<span>peristalsis.</span>
You should eliminate empty calories from your diet.
Answer:
50 to 100 times each minute.
Explanation:
During activity or excitement, your body needs more oxygen-rich blood; the heart rate rises to well over 100 beats per minute. Medications and some medical conditions may affect how fast your heart-rate is at rest and with exercise
