Answer: Option B
Explanation: The first line of defense acts a barrier and does not allows the foreign materials to enter inside the body. It includes chemical and physical barriers that are always ready to protect the body from infection.
Example: Skin and mucous membrane.
Skin is largest organ and it acts as a barrier between pathogens and human body. It acts a waterproof material and the pathogens cannot get inside through skin unless the skin is broken.
Mucous membranes also acts as first line of defense and breaks the cell wall of many bacteria entering through the openings of the body.
So, skin and mucous membrane are the first line of defense.
The flowering part in Monocot plants are in multiples of threes is a true statement. There can be either three or in multiples of three <span>flowering parts. </span>
Answer:
The wick absorbs the liquid wax and pulls it upward. The heat of the flame vaporizes the wax, and it is the wax vapor that burns. ... It continues to form as long as the wick is hot enough to vaporize paraffin. If you touch a lit match to the stream, a flame will run down it and re-light the wick.
Answer:
Water and carbon dioxide are released
Explanation:
TCS stands for temperature for safety food.
TCS food is temperature control to prevent the growth of microorganisms able to grow in food, by adapting to pH, humidity and the presence of proteins and carbohydrates.
<span>After TCS food has reached 165°F in a microwave oven the food should be kept at this temperature for at least two minutes so all parts of the food (even on the inside) should have this minimal temperature of 165°F.
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