Examples of Shutter Speed, Aperture and ISO 

Aperture (f4):

When the aperture has a wide opening, the subject in the picture will be focused, while the surroundings are blurred. These images fit the requirements because the subjects (bird) are focused, while its surroundings are blurred.

Aperture (f22):

When the aperture has a narrow opening, everything will be focused in the photo. These landscape photos have focused backgrounds; nothing is blurred.

Shutter Speed (blur): 

A slow shutter speed blurs the moving object and focus on the non-moving objects. In these photos, only the moving subject is blurred, while the non-moving subjects are focused.

Shutter Speed (freeze): 

A fast shutter speed allow for the moving object to freeze in action. These photos are great examples because every action is clearly focused.

ISO (high): 

When a photo have a high ISO, the quality will become very grainy. This aspect is shown in the images above.

ISO (low): 

When a photo have a low ISO, the overall quality will be clear. This aspect is shown in the images above.