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2151.

What do you mean by Classification? What are the needs of classification?

Answer» What do you mean by Classification? What are the needs of classification?
2152.

Briefly explain the process of respiration in Cockroaches.

Answer» Briefly explain the process of respiration in Cockroaches.
2153.

What are Antagonistic Muscles? Explain in breif.

Answer» What are Antagonistic Muscles? Explain in breif.
2154.

Differentiate between bone and cartilage with examples.

Answer» Differentiate between bone and cartilage with examples.
2155.

What are freely movable joints? What are the types? Explain. [5 MARKS]

Answer»

What are freely movable joints? What are the types? Explain. [5 MARKS]

2156.

Question 28Why do fireflies glow at night?

Answer» Question 28

Why do fireflies glow at night?
2157.

Fill in the blanks:(a) Production of new individuals from the vegetative part of parentis called ________.(b) A flower may have either male or female reproductive parts. Sucha flower is called _________.(c) The transfer of pollen grains from the anther to the stigma ofthe same or of another flower of the same kind is known as _________.(d) The fusion of male and female gametes is termed as __________.(e) Seed dispersal takes place by means of _________,_________ and _________.

Answer»


Fill in the blanks:




(a) Production of new individuals from the vegetative part of parent
is called ________.




(b) A flower may have either male or female reproductive parts. Such
a flower is called _________.




(c) The transfer of pollen grains from the anther to the stigma of
the same or of another flower of the same kind is known as _________.




(d) The fusion of male and female gametes is termed as __________.




(e) Seed dispersal takes place by means of _________,
_________ and _________.

2158.

What is the difference between genotypic and phenotypic ratio?

Answer» What is the difference between genotypic and phenotypic ratio?
2159.

Which mineral is vital for bones and teeth?

Answer» Which mineral is vital for bones and teeth?
2160.

Members of different species can reproduce among themselves. True or false?

Answer» Members of different species can reproduce among themselves. True or false?
2161.

Fishes move by using their side fins as oars. Do you agree?

Answer» Fishes move by using their side fins as oars. Do you agree?
2162.

Match the products with the process of making. Column 1Column 21.Milka. Liquid left after making cheese2.Butterb. Fermenting milk with acid and salt3.Curdc. Milking a cattle4.Cheesed. Churning the cream5.Wheye. Fermenting milk with bacteria

Answer»

Match the products with the process of making.

Column 1Column 21.Milka. Liquid left after making cheese2.Butterb. Fermenting milk with acid and salt3.Curdc. Milking a cattle4.Cheesed. Churning the cream5.Wheye. Fermenting milk with bacteria


2163.

Question 15Which type of movement would have been possible if1. our elbow had a fixed joint.2. we were to have a ball and socket joint between our neck and head.

Answer»

Question 15



Which type of movement would have been possible if

1. our elbow had a fixed joint.

2. we were to have a ball and socket joint between our neck and head.



2164.

Which one of the following plant parts are correctly matched with one of its stated characteristics? Mango seed - Aleurone layerBean seed - EndospermMaize grain - ColeoptileWheat grain - Exalbuminous

Answer»

Which one of the following plant parts are correctly matched with one of its stated characteristics?


Mango seed - Aleurone layer

Bean seed - Endosperm

Maize grain - Coleoptile

Wheat grain - Exalbuminous

2165.

How do frogs take in food?

Answer» How do frogs take in food?
2166.

Which of these provide us with quick energy?(a) carbohydrates(b) fats(c) proteins(d) both a and b

Answer» Which of these provide us with quick energy?

(a) carbohydrates

(b) fats

(c) proteins

(d) both a and b
2167.

Identify the correct combination of blood flow in the heart.

Answer»

Identify the correct combination of blood flow in the heart.


2168.

Which among the following plants have an annual life cycle?

Answer»

Which among the following plants have an annual life cycle?

2169.

Which organ helps the deer to hear the movement of predators?

Answer»

Which organ helps the deer to hear the movement of predators?


2170.

Seeing a bat flying over the roof of her house, Babita asked her father following questions:(a) What is this night flying bird?(b) How does it see during night?(c) What does it eat and how does it obtain its food?

Answer» Seeing a bat flying over the roof of her house, Babita asked her father following questions:

(a) What is this night flying bird?

(b) How does it see during night?

(c) What does it eat and how does it obtain its food?
2171.

Differentiate between biennial and perennial crops along with their examples.

Answer» Differentiate between biennial and perennial crops along with their examples.
2172.

is a promoter with a combination of five products obtained from the cow, which includes cow dung, cow’s urine, milk, curd and ghee.

Answer» is a promoter with a combination of five products obtained from the cow, which includes cow dung, cow’s urine, milk, curd and ghee.
2173.

The entire process of digestion is both ___ and ___.

Answer»

The entire process of digestion is both ___ and ___.


2174.

how many times does the wings of the bees stroke per second

Answer» how many times does the wings of the bees stroke per second
2175.

how many effective sodium ions are located at the edge centre of a unit cell in a sodium chloride crystal

Answer» how many effective sodium ions are located at the edge centre of a unit cell in a sodium chloride crystal
2176.

Cells carry oxygen to each cell of body Answer in one word

Answer»

Cells carry oxygen to each cell of body

Answer in one word

2177.

What makes termites different from ants?

Answer»

What makes termites different from ants?


2178.

The pigment present in the cells of epidermis is called

Answer»

The pigment present in the cells of epidermis is called

2179.

Write two examples of plants that are not grown from seeds.

Answer» Write two examples of plants that are not grown from seeds.
2180.

What is the function of the heart?

Answer»

What is the function of the heart?



2181.

(c) 22 A solution containing NH4Cl and NH40H has a(d) 14hydroxide ion concentration of 10-6 mol litre-1, whichVof the following hydroxides could be precipitated whenthis solution is added in equal volume to a solutioncontaining 0.1 M of metal ions?e(a) AgOH(Kp = 5 10-3 )b) Cd(OH2(K0-6)(e) Mg(OH)2 (Ksp 3x10-() Fe(OH)2 (Ksp 8 x10-16)

Answer» (c) 22 A solution containing NH4Cl and NH40H has a(d) 14hydroxide ion concentration of 10-6 mol litre-1, whichVof the following hydroxides could be precipitated whenthis solution is added in equal volume to a solutioncontaining 0.1 M of metal ions?e(a) AgOH(Kp = 5 10-3 )b) Cd(OH2(K0-6)(e) Mg(OH)2 (Ksp 3x10-() Fe(OH)2 (Ksp 8 x10-16)
2182.

What is a microscope? Label the components of the given microscope.

Answer» What is a microscope? Label the components of the given microscope.


2183.

Question 5 (a) Given below are the names of some objects and materials: Water, basket ball, orange, sugar, globe, apple and earthen pitcher Group them as: Round shaped and other shapes

Answer»

Question 5 (a)

Given below are the names of some objects and materials:
Water, basket ball, orange, sugar, globe, apple and earthen pitcher
Group them as:
Round shaped and other shapes

2184.

Which of the following is not a disease caused by a parasitic worm?

Answer»

Which of the following is not a disease caused by a parasitic worm?



2185.

Which of the following animals does not have bones?

Answer»

Which of the following animals does not have bones?


2186.

"When chlorophyll molecule absorbs a photo of light, the electrons are turned into an excited state"what are these electrons? Are these the electrons present in the chlorophyll molecule?

Answer» "When chlorophyll molecule absorbs a photo of light, the electrons are turned into an excited state"
what are these electrons? Are these the electrons present in the chlorophyll molecule?
2187.

Which of these plants has a tap root?(a) maize(b) grass(c) wheat(d) pea

Answer» Which of these plants has a tap root?

(a) maize

(b) grass

(c) wheat

(d) pea
2188.

What causes an epidemic of plague?

Answer»

What causes an epidemic of plague?

2189.

Correct the following statements and rewrite them.1. Stem absorbs water and minerals from the soil.2.Leaves hold the plant upright.

Answer» Correct the following statements and rewrite them.



1. Stem absorbs water and minerals from the soil.

2.Leaves hold the plant upright.
2190.

Which of the following represents the correct sequence of organisms in a food chain?

Answer»

Which of the following represents the correct sequence of organisms in a food chain?

2191.

Which of the following disease is transmitted through soil?

Answer»

Which of the following disease is transmitted through soil?


2192.

Which of the following is common for both respiration and combustion?

Answer»

Which of the following is common for both respiration and combustion?



2193.

The total number of bones in human skeleton are:

Answer»

The total number of bones in human skeleton are:


2194.

The organ responsible for gas exchange in a fish to take in the oxygen dissolved in water is?

Answer»

The organ responsible for gas exchange in a fish to take in the oxygen dissolved in water is?


2195.

Which of the following is an example of a hinge joint?

Answer»

Which of the following is an example of a hinge joint?


2196.

How many paired bones are there in the human body?

Answer» How many paired bones are there in the human body?
2197.

The rachis of a compound leaf represents

Answer»

The rachis of a compound leaf represents


2198.

Which of these is an arboreal animal?

Answer»

Which of these is an arboreal animal?


2199.

False fruits are -

Answer»

False fruits are -


2200.

What occupies space between the cell wall and the shrunken protoplast in a plasmolysed cell?

Answer» What occupies space between the cell wall and the shrunken protoplast in a plasmolysed cell?