Human population growth serves as an important model for population ecologists, and is one of the most important environmental issues of the twenty-first century.
Confidence votes 1. no not all, blood-borne pathogens are typically found in the blood stream and any bodily fluid that can contain blood can contain a blood borne pathogen. these include urine, feces, saliva, sperm, vaginal secretions, and even tears.
Fact Sheet: Universal Precautions What are universal precautions? Blood and other body fluids (i.e., semen, vaginal fluids, saliva, urine, feces, vomit) can contain viruses and bacteria that can be passed on to another person through direct contact.