Answer:
Innate immunity is present at birth.
Explanation:
The immune system is divided into two categories such as innate immunity and adaptive immunity. The innate immunity is present in an individual during birth. It does not depend on prior contact with microorganisms or immunization. It is present at birth and changes throughout the life of the individual. There are different barriers of innate immunity such as skin, mucous, lysozymes (present in the tears). This type of response is rapid and not specific. It has no memory. The cells of innate immunity are the phagocytic cell, dendritic cells.
Answer:
- The wind is caused by differences in air pressure.
- An anemometer is a tool for measuring wind speed.
- The wind-chill factor has a cooling effect
Explanation:
Winds move from areas of high pressure to areas of low pressure. This is because the areas of low pressure are composed of hotter and less dense air. The cooler air from the higher pressure region rushes in to displaces the rising warm less dense air. The direction from which the winds prevail FROM is used to name the winds(such as westerlies blow from West to East). A wind vane, windsock and anemometer measure the direction and speed of wind. As wind passes over the skin, it causes a cooling effect (the wind chill factor) because it blows the sweat away from the skin carrying with it the heat.
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Answer:</u></h2>
<u><em>The nucleus has three major functions: </em></u>
- Store the inherited material of the cell (DNA)
- Coordinates the activity of the cells ( i.e. growth, intermediate metabolism, protein synthesis and cell division/ reproduction).
- It maintains gene safety and monitors the functions of the whole cell through the regulation of genetic expression.
