How is the numbers of individuals in a biological indicators species population related to the health of water systems

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

Injuries in the environment are a result of

Acarotenoid is a yellow-orange pigment that absorbs light. infrared blue-green yellow-orange ultraviolet