Non Specific Line of Defense

Which of the following is not apart of your body’s first line of defense?

• Skin

• Mucus

• Stomach Acid

• Antibodies

The part of foreign materials that cause a response from the immune system are called _____________________.

• Antigens
• Active Immunity
• Antibodies
• Antibiotics

A nonspecific defensive response of the body to tissue injury characterized by dilation of blood vessels and swelling.

• immunity
• interferon
• immunization
• inflammation

The diagram below shows a cell in the human body engulfing a bacterial cell.

The cell labeled X is most likely a

• red blood cell

• white blood cell

• liver cell

• nerve cell

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

What is the body's first line of defense against infection by foreign organisms? 

• antibodies
• lymph nodes
• white blood cells
• the skin

Viruses are not considered living organisms even though they have several characteristics of living things.  What is the reason viruses are not considered alive?

• They are too small.
• A virus is a living organism.
• They need a host to reproduce.
• Viruses do not have DNA/genetic material.