How does riding your bike help your body?

Can you please tell me how does riding your bile help you with excersizing. Like, does it help your cardio, and does it even help you loose weight? I have the machine excersizing bike. I ride 10 min. for 3 or 4 miles. Will it help my body, make my legs toned, help me loose weight? Pleas ebe specific. I know, this is a very weird question but i want to improve my health starting today! :) THANKYOU!!!! lol!