Please capitalize where necessary: toxic substances tend to lock up mainly, but not exclusively, in the fat tissue of the body.
A: Toxic substances tend to lock up mainly, but not exclusively, in the fat tissue of the body.

Please capitalize where necessary: read the article in science
A: Read the article in Science

Please capitalize where necessary: the best thing to do is get your opponent to fold before you ever have the chance to get counterfeited.
A: The best thing to do is get your opponent to fold before you ever have the chance to get counterfeited.

Please capitalize where necessary: paying careful attention to your dog's head during the examination. your veterinarian may be able to feel a decrease in the amount of muscle on the sides of your dog's head, along with a thickening of the bone along the sides of the jaws.
A:
Paying careful attention to your dog's head during the examination. your veterinarian may be able to feel a decrease in the amount of muscle on the sides of your dog's head, along with a thickening of the bone along the sides of the jaws.