Fecal coliform is typically found in the _____ of humans and warm-blooded animals.

Fecal coliform is a group of bacteria found primarily in the intestines of humans and warm-blooded animals. These bacteria are part of the normal flora of the gastrointestinal tract and play a key role in the breakdown of organic matter. Their presence in water or food is often used as an indicator of fecal contamination, suggesting that pathogens could also be present.

The other options refer to areas of the body where fecal coliform is not primarily located. Blood does not normally contain fecal coliform, and its presence there indicates infection or disease. Skin might harbor a range of bacteria, but it is not a common habitat for fecal coliform. Similarly, urine is produced in the kidneys and does not typically contain fecal coliform unless there is some form of contamination. Thus, the intestines are the correct and only relevant location where fecal coliform is commonly found in significant amounts.