Q91 of 367 Page 75

The cells in our blood which destroy disease-causing germs, are :

Which blood cells (WBC), a component of blood, protect us from diseases. WBC make a chemical, antibodies which help to fight against infection.

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89

The procedure of cleaning the blood of a person by using a kidney machine is known as:

 90

The excretory organs in an earthworm are:

 92

The wave of expansion of an artery when blood is forced into it is called :

 93

In autotrophs, water is transported through: