Animals provide a major avenue for many infectious diseases. Many illnesses that are superbly dangerous such as rabies, avian flu, and ebola, are zoonotic, meaning they infect animals but are then transmitted to humans. It is important that we understand our relationship with animals in order to combat these diseases. <span />
Answer:
recreational activity is a physical or mental activity pursued primarily for pleasure. And leisure time is a period of time spent out of work and essential domestic activity.
Explanation:
Muscles. The biggest change in the body caused by regular exercise is to muscle tissue. “Once you take up exercise, you get early changes in gene expression, within hours, and this continues,” says Prof Donnelly. “The genes are for improved aerobic performance and muscle growth.