The unit responsible for skeletal muscle contraction which repeats in segments within the myofibril is called a sarcomere

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

Explain how unhealthful weight loss or weight gain can lead to further weight loss or weight gain.

Anwhen planning a water activity, it's best to include a friend or a group of friends rather than going alone, even if it's aneasy activity.tf