Q45 of 57 Page 45

Which structure protects the plant body against the invasion of parasites?

The dermal tissue of the plants i.e. the epidermis and hard cuticle that covers the plants body, protects the body against invasion of parasites.


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43

Fill in the blanks

(a) Lining of blood vessels is made up of ________


(b) Lining of small intestine is made up of ________


(c) Lining of kidney tubules is made up of ________


(d) Epithelial cells with cilia are found in ________ of our body.

 44

Water hyacinth float on water surface. Explain.

 46

Fill in the blanks

(a) Cork cells possesses ______ on their walls that makes it impervious to gases and water.


(b) _______ have tubular cells with perforated walls and are living in nature.


(c) Bone possesses a hard matrix composed of _______ and ______ .

 47

Why is epidermis important for the plants?