The body has very efficient internal defenses which can remove any quantity of an unwanted substance

Possible Answers:

1. True
2. False

Explanation:

The human body has its defense mechanism where it tries to remove unwanted and harmful substances from the body. The most crucial internal defense is the excretion system, eliminating waste and other contaminants in the form of urine and feces. The kidneys and liver are responsible for filtering the waste. The lungs consist of cilia, which help the respiratory system in removing the particles by coughing. Sweating and breathing is another defense system of the body to remove toxic substances. When a person consumes alcohol, the smell in his breath and mouth is a way of exhaling harmful materials from the body. Tears are another mechanism to remove the contaminants from the eyes.

There are several other examples and parts that a body uses to remove toxic substances from the body. But it does not mean that the body’s internal defense system removes all the poisonous substances. Every individual has a different capacity for removing toxic substances; for example, children’s bodies have more ability to detoxify than elderly individuals.

Humans should prevent themselves from exposure to harmful or chemical substances instead off wholly relying on the body’s internal defense mechanism. They should always be aware of the threat posed by any hazardous material present in their community or homes. They should learn how to minimize or eliminate unnecessary exposure to the human body.

References:

• https://training.fema.gov/is/courseoverview.aspx?code=is-5.a
• https://emilms.fema.gov/is_0005a/curriculum/1.html