What is a species of bacteria in your body that helps protect you? Support your answer with evidence from the text. Question #9 ReadWorks
Human Microbiome: The role of Microbes in Human Health.

it depends because we have millions of cells and bacteria.

Heliobacter pylori  I think..

Or:

Bacillus subtilis. It can be found on the skin, and it makes bacitracin, a poison that helps it fight off other microbes. Scientists have taken advantage of bacitracin's antibiotic qualities and used it in antibiotic ointments.

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.

d, i believe because of it's activity level