81.
Which of the following is the cellular respiratory centre?

82.
The first root produced from a seed is known as

83.
The site in ovule where funicle is attached

84.
The seeds which contain abundant glyoxysomes are

85.
Skin is an example of what type of tissue?

86.
In human the thickest skin is present in

87.
They form the material which forms skins, muscles, hair and nails in animals.

88.
Which of the following is responsible for giving colour to human skin?

89.
Which is the largest organ in the human body?

90.
Branch of science which deals with the study of skin of man is called

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