Question

which of the following is an example of a host in the chain of infection?
insect bite
pathogen
human body
pesticide
question 2 (2.5 points)
a place where the agent can survive is called the _____.
reservoir
portal of exit
chain of infection
portal of entry
question 3 (2.5 points)
many fungi are sources of food and medicines that are beneficial to humans.
true
false
question 4 (2.5 points)

Explanation:

Question 1

In the chain of infection, a host is an organism that harbors a pathogen. An insect bite is a mode of transmission, a pathogen is the infectious agent, and a pesticide is a chemical for killing pests. The human body can harbor pathogens, so it is a host.

In the chain of infection, a reservoir is a place where the infectious agent (agent) can survive. A portal of exit is how the agent leaves the reservoir, the chain of infection is the whole process, and a portal of entry is how the agent enters a new host. So the correct term for a place where the agent can survive is reservoir.

Many fungi are beneficial to humans. For example, mushrooms are a food source, and fungi like Penicillium are used to make antibiotics (medicines). So the statement that many fungi are sources of food and medicines beneficial to humans is true.

Answer:

C. Human body

Question 2