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1801.

Digestion does not occur in which of the following parts of the digestive system?

Answer»

Digestion does not occur in which of the following parts of the digestive system?



1802.

Question 2 Which of the following is the correct match between the characteristics of stem and the category of plant? (a) Weak stem which cannot stand upright: Creeper (b) Green tender stem: Shrub (c) Thick, hard stem with branching near the base: Tree (d) Thick, hard stem with branches high on the plants: Herb

Answer»

Question 2

Which of the following is the correct match between the characteristics of stem and the category of plant?
(a) Weak stem which cannot stand upright: Creeper
(b) Green tender stem: Shrub
(c) Thick, hard stem with branching near the base: Tree
(d) Thick, hard stem with branches high on the plants: Herb

1803.

To prevent tooth decay, it is advised to brush our teeth regularly. Why?

Answer» To prevent tooth decay, it is advised to brush our teeth regularly. Why?
1804.

Bright coloured part of a flower is:

Answer»

Bright coloured part of a flower is:


1805.

A tiger does not eat plants, so it does not depend on plants for food. Is the statement true? Justify your answer.

Answer» A tiger does not eat plants, so it does not depend on plants for food. Is the statement true? Justify your answer.
1806.

How does butterfly act as an agent of pollination?

Answer» How does butterfly act as an agent of pollination?
1807.

The upper part of the ear comprises of:

Answer»

The upper part of the ear comprises of:


1808.

Name the muscular sheet that forms the floor of the chest cavity?

Answer» Name the muscular sheet that forms the floor of the chest cavity?
1809.

How can we count heartbeat without using an instrument?

Answer»

How can we count heartbeat without using an instrument?


1810.

An example of ball and socket joint is

Answer»

An example of ball and socket joint is


1811.

Identify the component present in the following which is not a nutrient but is required by our body to eliminate digestive waste.

Answer»

Identify the component present in the following which is not a nutrient but is required by our body to eliminate digestive waste.


1812.

Name the organs by which whales respire.

Answer»

Name the organs by which whales respire.


1813.

What are cells? Are all living things made up of cells?

Answer» What are cells? Are all living things made up of cells?
1814.

Question 16Why is it not advisable to burn plastic and synthetic fabrics?

Answer» Question 16

Why is it not advisable to burn plastic and synthetic fabrics?
1815.

__ are conserved specific places for the huge diversity or variety of life that they hold.

Answer»

__ are conserved specific places for the huge diversity or variety of life that they hold.



1816.

Complete the diagram and explain the whole cycle. [5 MARKS]

Answer»

Complete the diagram and explain the whole cycle. [5 MARKS]

1817.

Saliva contains an enzyme called ___. It acts upon starch and produces ___ .

Answer»

Saliva contains an enzyme called ___. It acts upon starch and produces ___ .


1818.

The height of an equilateral triangle is 6 cm. Its area is(a) 33 cm2 (b) 23 cm2 (c) 22 cm2 (d) 62 cm2

Answer» The height of an equilateral triangle is 6 cm. Its area is



(a) 33 cm2 (b) 23 cm2 (c) 22 cm2 (d) 62 cm2
1819.

Draw diagrams.(a) Types of joints(b) Structure of the skin

Answer» Draw diagrams.

(a) Types of joints

(b) Structure of the skin
1820.

Which of the following occupies the same trophic level?

Answer» Which of the following occupies the same trophic level?
1821.

A deer does not eat the type of food that we eat. It is a ________.

Answer»

A deer does not eat the type of food that we eat. It is a ________.


1822.

what is alveolar sac and what function it is doing

Answer» what is alveolar sac and what function it is doing
1823.

Choose a unicellular organism from the following:

Answer»

Choose a unicellular organism from the following:


1824.

does caso_4.2H_2o is orthorhombic or monoclinic discuss about it and what happen when it is heated slightly ?

Answer» does caso_4.2H_2o is orthorhombic or monoclinic discuss about it and what happen when it is heated slightly ?
1825.

How to identify a new species?

Answer» How to identify a new species?
1826.

Cells of Robert Hooke were actually

Answer» Cells of Robert Hooke were actually
1827.

The hinge joints allow movement in(a) all directions.(b) one plane only.(c) two planes only.(d) depends on where the joint is located in the body.

Answer» The hinge joints allow movement in

(a) all directions.

(b) one plane only.

(c) two planes only.

(d) depends on where the joint is located in the body.
1828.

What is a joint? How can you classify joints on the basis of the movement they allow?

Answer» What is a joint? How can you classify joints on the basis of the movement they allow?
1829.

The diet containing all the nutrients required by our body is called a __.

Answer»

The diet containing all the nutrients required by our body is called a __.

1830.

Which of the following is NOT a cell found in the human body?

Answer»

Which of the following is NOT a cell found in the human body?


1831.

Why do fishes have fins?

Answer»

Why do fishes have fins?

1832.

Which part of the skeleton surrounds and protects the heart?

Answer» Which part of the skeleton surrounds and protects the heart?
1833.

Difference between glycerophospholipid and glycosphingolipid.

Answer» Difference between glycerophospholipid and glycosphingolipid.
1834.

Give an example of an animal that uses camouflage to escape from enemies, and another that uses camouflage to catch its prey. Explain how the camouflage helps each of them.

Answer» Give an example of an animal that uses camouflage to escape from enemies, and another that uses camouflage to catch its prey. Explain how the camouflage helps each of them.
1835.

What is the difference between prey and predator?

Answer» What is the difference between prey and predator?
1836.

Name some features that are common to both living and non-living things.

Answer» Name some features that are common to both living and non-living things.
1837.

Question No 22 Answer the following questions in one or two words or sentences. (a) Why should we prefer to use paper bags rather than polythene bags? (b) Who out of the following, should properly dispose off the garbage-father, mother, elder brother, younger sister? (c) Which one out of beetles, roundworm and earthworm are used for vermicomposting and why?

Answer»

Question No 22

Answer the following questions in one or two words or sentences.

(a) Why should we prefer to use paper bags rather than polythene bags?

(b) Who out of the following, should properly dispose off the garbage-father, mother, elder brother, younger sister?

(c) Which one out of beetles, roundworm and earthworm are used for vermicomposting and why?

1838.

Which of the following organism(s) exhibit indefinite growth?

Answer»

Which of the following organism(s) exhibit indefinite growth?


1839.

Why do we classify organisms?

Answer»
Why do we classify organisms?


1840.

Write down the lifespans of the following organisms.(b) Rose

Answer» Write down the lifespans of the following organisms.

(b) Rose
1841.

Classify the following into biotic or abiotic elements of a habitat. [5 MARKS] S.NoElement1Bacteria2Dog3Humidity4Temperature5Water

Answer»

Classify the following into biotic or abiotic elements of a habitat. [5 MARKS]

S.NoElement1Bacteria2Dog3Humidity4Temperature5Water

1842.

Choose the correct course of human evolution:

Answer»

Choose the correct course of human evolution:



1843.

What is nutrition?

Answer» What is nutrition?
1844.

Express (1÷1-2iota)(3+4iota÷2-4iota) in the form of a+iota×b

Answer» Express (1÷1-2iota)(3+4iota÷2-4iota) in the form of a+iota×b
1845.

List two uses of jute.

Answer» List two uses of jute.
1846.

Why would seeds dropped near their parent plant not germinate?

Answer»

Why would seeds dropped near their parent plant not germinate?


1847.

Molecular structure of water

Answer» Molecular structure of water
1848.

‘Runner type’ plant is associated with which of the following crops –

Answer»

‘Runner type’ plant is associated with which of the following crops –


1849.

a) How do staining dyes help in cell visualisation?b) Name any two staining dyes.

Answer» a) How do staining dyes help in cell visualisation?

b) Name any two staining dyes.
1850.

Maximum life span is the characteristic of A and life expectancy is the characteristic of a B

Answer» Maximum life span is the characteristic of A and life expectancy is the characteristic of a B