Answer:
Types of Wetlands
tupelo gum trees
Tupelo Gum Pond, Source: Missouri Dept of Conservation
The virulence of the microbes should be high to cause an active infection.
Explanation:
Virulence is the actual potential or ability of a pathogenic microbe to infect a host. Even with a high median infectious dose to cause an infection, it is the virulence which defines the level of pathogenicity or ability of the pathogens like the foodborne pathogens to cause and active infection.
An active infection is caused when virulence of the pathogen is high. The virulence factors are surface receptors, surface coats, and toxins.
Virulent bacteria cause active infection by adhesion, colonization, invasion, immune response inhibitors, or as toxins. A virulent virus replicates rapidly and modifies the host’s defensive mechanism
A chemical indicator is a substance that changes color when you an acid to it. it is used to test the acidity in water, soil, etc.
i havent learned how it works yet , but ill try to figure it out for you
Answer:
The first one and second one
Explanation:
