Question

a.) Write two effects caused due to bad weather.
b.) What are the functions of drculatory system in animal body?
c) Why are the tumblers used to sip hot drinks not made of metals?
d.) Write functions of each-
L) Xylem
IL) Phloem
Q.5. SHORT ANSWERS:-
.
Each question carries 3 marks.
Max. Word limit is 30-40 words.
a.) (1.) Why black and dark coloured clothes are preferred in winter days?
(II.) Name three modes of transfer of heal
b.) Why is excretion very essential?
Q.6. LONG ANSWER:
This question carries 6 marks.
. Max. word limit is 80-100 words.
a.) (L.)
Why ventricles have thicker walls than auricles?
(L.)Write the function of RBCS.
(Why WBCs are called soldiers of body?​

Answer 1

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[ A ] Write two effects caused due to bad weather?

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Sometimes weather is extreme, causing destruction and death. Too much rain can cause flooding. Too much hot weather for long periods of time without any rain can cause drought. Huge storms with strong winds, such as hurricanes and tornadoes, can do a great amount of damage to buildings and crops.

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b.) What are the functions of drculatory system in animal body?

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The circulatory system can be thought of as a highway system that runs throughout the body. Circulatory system is analogous to a highway system: Just as highway systems transport people and goods through a complex network, the circulatory system transports nutrients, gases, and wastes throughout the animal body.

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Why are the tumblers used to sip hot drinks not made of metals?

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The circulatory system can be thought of as a highway system that runs throughout the body. Circulatory system is analogous to a highway system: Just as highway systems transport people and goods through a complex network, the circulatory system transports nutrients, gases, and wastes throughout the animal body.

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d.) Write functions of each-

L) Xylem

IL) Phloem

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XYLEM

1. Xylem fibres: provide mechanical support.
2. Xylem tracheids: transport of water and mineral salts...

PHLOEM

1. Phloem also contains four types of cells such as phloem parenchyma, phloem fibres, companion cells and sieve tubes.
2. Phloem parenchyma: transport of nutrients and storage of organic food.