A. In the Body Defender challenge, what two body parts make up the first line of defense against pathogens? pls answer

there can be many activities that a person can do for five days a week for 60 minutes.

one of them can be playing football or any sport you love because it can you get better physique as well as strength and stamina also not so tough to play for 60 minutes.

another activity can be swimming which is really good for endurance and stamina. it goes and hits up all parts of the body muscles from feet to hands. so it quite recommended by doctors.

it contracts and pulls the lungs downwards. this opens the lungs and chest cavity and allows air to come into the lungs.

a. remove the danger that lead to the injury