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351.	Where are the cardiac muscles present?
Answer» Cardiac muscles are present in the heart. Cardiac muscle tissue is a type of muscle tissue that is found only in the heart. It makes up the bulk of the heart’s mass. The heart beats powerfully and continuously throughout an entire lifetime without any rest, so cardiac muscle has evolved to have the incredibly high contractile strength and endurance.

351.

Where are the cardiac muscles present?

Answer»

Cardiac muscles are present in the heart.

Cardiac muscle tissue is a type of muscle tissue that is found only in the heart. It makes up the bulk of the heart’s mass. The heart beats powerfully and continuously throughout an entire lifetime without any rest, so cardiac muscle has evolved to have the incredibly high contractile strength and endurance.

Discussion

352.	The most common type of groung tissue isA. epidermisB. collenchymaC. sclerenchymaD. parenchyma
Answer» Correct Answer - D

Discussion

353.	What is common name of :
Answer» (a) Wood , (b) Phloem

Discussion

354.	Name the plant cell which is attached to the lateral side of sieve tube.
Answer» Companion cell is attached to the lateral side of sieve tube.

Discussion

355.	Give one example of protective tissue in plants.
Answer» Cork is the protective tissue in the plants.

Discussion

356.	Which type of simple tissue of plant is used for making ropes ?
Answer» Sclerenchyma is used for making ropes.

Discussion

357.	(i) Why are only some parts of plants used for making ropes ? (ii) Cotton fibres are obtained from which part of cotton plant ? (iii) In which state of our country, jute growing is a major source of income.
Answer» (i) Sclerenchymatous tissue which consists of thick-walled dead cells is located in parts where strength and support is required. Only such parts can be used for making strong ropes etc. (ii) From seed coat epidermis of cotton plant. (iii) West Bengal.

Discussion

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Explore topic-wise InterviewSolutions in .

Where are the cardiac muscles present?

The most common type of groung tissue isA. epidermisB. collenchymaC. sclerenchymaD. parenchyma

What is common name of :

Name the plant cell which is attached to the lateral side of sieve tube.

Give one example of protective tissue in plants.

Which type of simple tissue of plant is used for making ropes ?

(i) Why are only some parts of plants used for making ropes ? (ii) Cotton fibres are obtained from which part of cotton plant ? (iii) In which state of our country, jute growing is a major source of income.