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Q: What is the major barrier to infection in humans?
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Integumentary?

A barrier against diseases, injury, and infection


Which of the following is a surface barrier to infection?

The (unbroken) skin is a natural surface barrier to infection. Then, first aid items such as pads, plasters and bandages, used with antiseptic creams or lotions.


What tissues serve as a barrier to microbial infection?

Epithelial tissues


What is the enemy of the Great Barrier Reef?

humans!


What acts as the first line of defense and is also an exterior barrier for infection?

Skin.


Can dogs get a viral infection from humans?

no


Briefly explain how the mutation that protects some humans from HIV infection arose?

How does mutation that protects some humans from HIV infection arose?


Can skin be used to take in oxygen?

In humans, no - the skin is an impermeable barrier to air.


What is the first natural defense against germs?

A barrier... in humans that would be your skin.


What is one way skin helps protect the body from infection?

Serves as a physical barrier to keep pathogens out.


What are any non native animals in the great barrier reef?

Humans do lots of bad things to hurt the reef. Mainly humans!


Is cockroach bite poisonous to humans?

no but it can cause infection