Students and Teachers Forum

1. What do you mean by continuous variation?

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2. What do you mean by environmental variation?

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3. What do you mean by variation?

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4. What do you mean by Meiosis?

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5. What do you mean by Hybrid?

Hybrid plant or animal are those, which are produced from two different types of plant or animal, especially to get better .....

6. What do you mean by genotype?

The genotype of an organism is the chemical composition of its DNA, which gives rise to the phenotype, or observable traits of an organism.  A genotype consists of all the nucleic acids present in a DNA molecule that code for a particular .....

7. What do you mean by phenotype?

A phenotype is the composite of an organism's observable characteristics or traits, such as its morphology, development, biochemical or physiological properties, behavior, and products of behavior (such as a bird's .....

8. What do you mean by heredity characters?

The traits or characters which are passed from parents to offsprings are collectively known as heredity characters. Gene plays a vital role in heredity because it is the basic physical and functional unit of .....

9. What do you mean by genetics?

Genetics is the study of heredity and the variation of inherited .....

10. What do you mean by gene?

A gene is the basic physical and functional unit of heredity.  Genes, which are made up of DNA, act as instructions to make molecules called .....

11. The given figure is a solid object formed by a cone and a hemisphere. If the total height of that solid object is 28 cm and radius of cone is 12 cm, find the total surface area of the solid object.

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12. Sketch a neuron and label its various parts.

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13. Draw the diagram of human brain and label cerebrum, cerebellum and medulla.

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14. what is surds

A surd is a number or quantity that cannot be expressed as the ratio of two integers. The term also refers to a symbol (√) that is sometimes used to indicate that the number or quantity that follows it is a root. For .....

15. A tent of height 33 cm is in the form of a right circular cylinder of radius 60 cm and height 22 cm surmounted by a right circular cone of the same radius. Find the total surface area of the tent.
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16. Find the curve surface area and total surface area of the given solid figure.

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17. मेरो विद्यालयमा गजल प्रतियोगिता हुन लागेकाले एक दुई वटा गजल पठाइदिनुहोस् ।

तल लेखिएका गजल मेरा नभएर खोजी गरेर लेखिएका गजल हुन् है मित्र ः  लुकाउनेले मारिन् मृग नयनी .....

18. Find the curve surface area and total surface area of the given solid figure.

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19. Prove that the slope of two perpendicular line is -1.

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20. Find the volume of given solid figure.


 

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21. Find the volume of given solid figure.

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22. संयोजक र निपात दुवैमा पर्ने शब्दहरू लेख्नुहोस् ।

संयोजक र निपात दुवैमा पर्ने शब्दहरू वाक्यमा प्रयोग भएपछि मात्र थाहा हुन्छ । .....

23. What are polar and non-polar covalent bonds?

You may have learnt that atoms share their electrons with each other to form a bond. The bond is called covalent bond. However, the electrons may or may not be shared equally. i.e. the shared electrons may be close to one atom and may be far .....

24. संयोजक र निपात दुवैमा पर्ने शब्द लेख्नुहोस् ।

संयोजक र निपात दुवैमा पर्ने शब्दहरू वाक्यमा प्रयोग भएपछि मात्र थाहा हुन्छ । .....

25. Find the volume of given solid figure.

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26. Find the volume of given solid figure.

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27. How can honey be useful?

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28. Explain how silk fibre is extracted.

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29. Illustrate as a table, the functions of different types of bees in detail.

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30. Why is silk fibre considered very useful?

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31. Why is bee considered was a very useful insect?

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32. Pupa of silkworm is put into hot water before extracting the silk, why?

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33. Some larvae are fed on royal jelly only but some others are fed the royal jelly only partially in a bee colony. Why?

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34. What suggestions would you give to solve the complexities of implementing present contitution? Write in four points.

The present constitution was announced on 2072 BS. It was formulated by the second constitutional assembly after the first constitutional assembly was dissolved without formulating the constitution. So, implementing the constitution in the country .....

35. Pancreas is called the mixed or heterocrine gland, why?

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36. Write reasons why:
Pituitary gland is also called the master gland of the body.

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37. How is goitre formed ?

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38. Salivary gland
Sweat gland
Tear gland
are called exocrine glands, why ?

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39. What is the advantage of convolutions in the brain especially in cerebrum?

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40. How does the spinal cord support the human body?

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41. What is coma? How does it happen?

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42. Differentiate between: Oestrogen and Testosterone

The difference between oestrogen and testosterone :

Oestrogen

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43. Differentiate between: Cerebrum and cerebellum

Cerebrum Cerebellum 1. It is the largest part of the brain, forming four fifths of its weight. 1. It is the second largest part of the brain, forming one eight of its mass. 2. It is a part of the centre for .....

44. Differentiate between: Central nervous system Vs. Peripheral nervous system

Central Nervous System

45. Differentiate between: Sensory nerves and motor nerves.

Differences between sensory nerves and motor nerves are as follows:   Sensory nerves Motor nerves 1. Sensory nerves carry iimpulses from the sense organs to the CNS. 2. Sensory nerves are also called as afferent .....

46. Differentiate between: Spinal nerves and the cranial nerves.

Differences between spinal nerves and cranial nerves are as follows:   Spinal nerves Cranial nerves 1. Spinal nerves arise from the spinal cord. 2. There are 31 pairs of spinal nerves in the human body. 3. All .....

47. Differentiate between: Exocrine glands and endocrine glands.

Exocrine Glands Endocrine glands 1. They may or maynot have duct. 1. These are ductless glands. 2. The secretion is poured directly at the site of action or reaches the target. 2. They pour secretion directly into .....

48. कोष्ठकमा दिइएका धातु र सङ्केतका आधारमा खाली ठाउँ भर्नुहोस् :

(क) तिमीले रमिता देखाएका थियौ । (अभ्यस्त भूत)

(ख) म चन्द्रागिरी केबुलकार चढ्छु । (अपूर्ण भूत)

(क) तिमी रमिता देखाउँथ्यौ । (ख) म चन्द्रागिरी केबुलकार चढ्दै थिएँ .....

49. अभ्यस्त पक्षको विशेषता के हो ?

अभ्यस्त पक्षको विशेषता भनेको बितेको समयको बानी हो । जस्तै : पहिला म नाच्थेँ । म .....

50. कोष्ठमा लिइएका सङ्केतका आधारमा तलका वाक्यहरू परिवर्तन गर्नुहोस् :

(क) केटाहरू पढ्न गए । (अपूर्ण वर्तमान)

(ख) तिनीहरू मोबाइल चलाउँदै छन् । (सामान्य वर्तमान)

(ग) बिन्दु कार चढेकी हुने छिन् । (सामान्य वर्तमान)

(घ) बुबा सिन्धुली जाँदै हुनुहुन्छ । (पूर्ण भविष्यत्)

(क) केटाहरू पढ्न जाँदै छन् । (ख) तिनीहरू मोबाइल चलाउँछन् । (ग) बिन्दु कार चढ्छिन् । (घ) बुबा .....