Answer:
Concentric muscle contraction (shortening): In weight training, this is the lifting phase of an exercise. ...
Eccentric muscle contraction (lengthening): In weight training, this is the phase in which the muscle returns to the starting position of the exercise.
our muscles are made of bundles of muscle fibers that contain thousands of smaller structures called myofibrils, where the actual contraction occurs. There are two types of protein filaments within myofibrils—actin and myosin. Actin forms thin filaments. Myosin forms thick filaments and is a "molecular motor" that converts chemical energy into mechanical energy, which creates force and drives motion.
Explanation:
Social relationships can improve or harm health...Improve is first : you can get to learn new things that can help you in life that would make your social relationship better like how you speak to someone. Now here is harm health : first you can get stress out from things that's is going on between you and your peer
The best and most correct answer among the choices provided by your question is the third choice.
<span>Other scientists not associated with the product testing the claims would most likely makes the product acceptable by the scientific community.</span>
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Intestines -Its main purpose is to digest food. But the intestine is not only there for digestion: it also produces various substances that carry messages to other parts of the body, and plays an important role in fighting germs and regulating the body's water balance.
Pancreas-During digestion, your pancreas makes pancreatic juices called enzymes. These enzymes break down sugars, fats, and starches. Your pancreas also helps your digestive system by making hormones. These are chemical messengers that travel through your blood.
Heart-The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.
Answer:
cells make up tissues , I guess
