Rapids refers to the segments of streams with extensively vigorous currents, various obstacles, and steps in their streambeds. A waterfall refers to a vertical drop in a stream bed. Both are the locations of vigorous erosion.

The rapids are generally produced where the resilient bedrock limits a stream to a narrow channel and forces an enhancement in the velocity of water.

On the other hand, waterfalls are produced where the fast-flowing water negotiates a geologic contact amid the more resilient and less resistant layers of rock, or through a fault, which has analogized distinct kinds of rocks. Or it can be said that waterfalls usually produce at the end of a series of rapids.

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3 years ago

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What approximate percentage of lymphocytes is seen at age 4?

mr_godi [17]

Answer:

Blood is composed of several types of cells:

RED BLOOD CELLS: They are the oxygen carriers of the body i.e. they pick up the oxygen as the blood goes through the lungs & release of oxygen to cells.Also known as erthrocytes
WHITE BLOOD CELLS: also known as leukocytes.They are the soldiers of the body.Aims at fighting against the infections ( caused by bacteria & virus)

PLATELETS : helps in the blood clot in response to any wound or injury

There are five types of white blood cells & approx %age they made up in blood are:

•Neutrophils (55% to 70%)

•Band neutrophils (0% to 3%)

•Lymphocytes (20% to 40%)

•Monocytes (2% to 8%)

•Eosinophils (1% to 4%)

•Basophils (0.5% to 1%)

When children are more than 4 year old they have higher % age of lymphocytes than the adults do.

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3 years ago