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801.

Is breaking down of Ozone a chemical change?

Answer» Is breaking down of Ozone a chemical change?
802.

78.NAME OF ALL THE STORAGE BODIES PRESENT IN THE CYTOPLASM OF A BACTERIA? WITH THEIR full names

Answer» 78.NAME OF ALL THE STORAGE BODIES PRESENT IN THE CYTOPLASM OF A BACTERIA? WITH THEIR full names
803.

Question 13.To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is (a) acidic(b) neutral(c) basic(d) corrosive

Answer»

Question 13.

To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is

(a) acidic

(b) neutral

(c) basic

(d) corrosive



804.

What is not seen during inhalation?

Answer»

What is not seen during inhalation?


805.

The pituitary gland is located below the ______.

Answer»

The pituitary gland is located below the ______.



806.

Why do we sometimes suffer from muscle cramps while exercising?

Answer»

Why do we sometimes suffer from muscle cramps while exercising?

807.

1. Imagine what two elephants would say to each other about people. Let them talk about• what people look like• what they eat• how they walkYou can sayLook at that man’s nose See how small it is!2. Let's find two things which you can do and the birds can't do. Tell the class.

Answer» 1. Imagine what two elephants would say to each other about people. Let them talk about
• what people look like

• what they eat

• how they walk



You can say
Look at that man’s nose See how small it is!




2. Let's find two things which you can do and the birds can't do. Tell the class.
808.

Which one of the above fruits/seeds would you like to (or at least more people would prefer to) eat?

Answer»

Which one of the above fruits/seeds would you like to (or at least more people would prefer to) eat?


809.

Central nervous system comprises of:

Answer»

Central nervous system comprises of:



810.

Where is iron present in our body

Answer»

Where is iron present in our body

811.

Animals living in what kind of climate have a thick layer of fat or fur on their bodies?a. Cold climateb. Hot and dry climatec. Hot and wet climated. All of these

Answer» Animals living in what kind of climate have a thick layer of fat or fur on their bodies?

a. Cold climate

b. Hot and dry climate

c. Hot and wet climate

d. All of these
812.

Out of the four chambers of heart, which of the following will contract together?

Answer»

Out of the four chambers of heart, which of the following will contract together?


813.

Answer the following: [3 MARKS] 1.Which is the major excretory product of fishes? 2. Which is the major excretory product of birds? 3. Which is the major excretory product of humans?

Answer» Answer the following: [3 MARKS]
1.Which is the major excretory product of fishes?
2. Which is the major excretory product of birds?
3. Which is the major excretory product of humans?
814.

A cell loses water and shrinks when it is kept in

Answer» A cell loses water and shrinks when it is kept in
815.

Why do leaves of trees along roads with heavy traffic look dirty?

Answer»

Why do leaves of trees along roads with heavy traffic look dirty?



816.

Tomatoes appear red in colour due to the presence of the pigment lycopene but at the early stage of a tomato ,it appears green in colour. How does the tomato get its red colour when it is ripe ?

Answer»

Tomatoes appear red in colour due to the presence of the pigment lycopene but at the early stage of a tomato ,it appears green in colour. How does the tomato get its red colour when it is ripe ?

817.

What do chlorine and ozone do to the sewage water?

Answer» What do chlorine and ozone do to the sewage water?
818.

Complete the statements using the proper option from those given below. Explain the statements.(mycotoxins, budding, rhizobium)a. Yeast reproduces asexually by the ............. method.b. Toxins of fungal origin are called ............. .c. Leguminous plants can produce more proteins due to ............. .

Answer»
Complete the statements using the proper option from those given below. Explain the statements.


(mycotoxins, budding, rhizobium)




a. Yeast reproduces asexually by the ............. method.


b. Toxins of fungal origin are called ............. .


c. Leguminous plants can produce more proteins due to ............. .
819.

What do we mean by seed dispersal?

Answer» What do we mean by seed dispersal?
820.

What is radiation?

Answer»

What is radiation?

821.

are lysosomes vacuoles or vescicles?

Answer» are lysosomes vacuoles or vescicles?
822.

Plants can lose water through:

Answer»

Plants can lose water through:


823.

Does transpiration serve any useful function in the plants? Explain.

Answer»


Does transpiration serve any useful function in the plants? Explain.

824.

Which part of rhizopus is involved in reproduction process?

Answer»

Which part of rhizopus is involved in reproduction process?


825.

What are the functions of heart ?

Answer» What are the functions of heart ?
826.

Where is the bile produced? Which component of the food does it helpto digest?

Answer»


Where is the bile produced? Which component of the food does it help
to digest?

827.

When we take deep breaths, we tend to:

Answer»

When we take deep breaths, we tend to:


828.

Write a short note on agricultural water conservation.

Answer» Write a short note on agricultural water conservation.
829.

Match the questions with the answers. A B​1. Comment vous appelez - vous? (a) Je vais bien, merci.2. Où habitez - vous? (b) De rien.3. Quel âge avez - vous? (c) J'habite à Paris.4. Merci beaucoup. (d) J'ai neuf ans.5. Comment allez - vous? (e) Je m'appelle Éric.

Answer» Match the questions with the answers.



A B

​1. Comment vous appelez - vous? (a) Je vais bien, merci.

2. Où habitez - vous? (b) De rien.

3. Quel âge avez - vous? (c) J'habite à Paris.

4. Merci beaucoup. (d) J'ai neuf ans.

5. Comment allez - vous? (e) Je m'appelle Éric.
830.

Question 32Well defined nucleus is absent in(a) blue green algae(b) diatoms(c) algae(d) yeast

Answer»

Question 32

Well defined nucleus is absent in




(a) blue green algae

(b) diatoms

(c) algae

(d) yeast



831.

difference between lenticels and stomata

Answer» difference between lenticels and stomata
832.

DIRECTIONS: Match Column – I with Column – II and select the correct answer using the codes given below the columns. Column−IColumn−IIA. Red eyed frogP. Thick skin and strong sense of smellB. ToucanQ. Thick skin and sensitive hearingC. Big catsR. Long large beakD. Polar bearS. Sticky pad

Answer»

DIRECTIONS: Match Column – I with Column – II and select the correct answer using the codes given below the columns.
ColumnIColumnIIA. Red eyed frogP. Thick skin and strong sense of smellB. ToucanQ. Thick skin and sensitive hearingC. Big catsR. Long large beakD. Polar bearS. Sticky pad


833.

what is difference bewteen amu and g

Answer» what is difference bewteen amu and g
834.

Why is sunlight important? Can you tell me with the help of an activity?

Answer» Why is sunlight important? Can you tell me with the help of an activity?
835.

Who is telling a lie ? Organ Statement 1. Tongue My taste-buds can tell only a sweet taste. 2. Liver I am the largest gland in the body. 3. Large intestine I am 7.5 meter long. 4. Appendix Digestion is impossible without me. 5. Lung I play an important role in excretion.

Answer» Who is telling a lie ?



























Organ Statement
1. Tongue My taste-buds can tell only a sweet taste.
2. Liver I am the largest gland in the body.
3. Large intestine I am 7.5 meter long.
4. Appendix Digestion is impossible without me.
5. Lung I play an important role in excretion.
836.

how to know about stability of tautomers

Answer» how to know about stability of tautomers
837.

28. What is spontanious reaction

Answer» 28. What is spontanious reaction
838.

Gas exchange takes place in plants using ___________

Answer»

Gas exchange takes place in plants using ___________



839.

_______ is added to large freezers for preserving fish and meat on an industrial basis for fast solidification of ice.

Answer»

_______ is added to large freezers for preserving fish and meat on an industrial basis for fast solidification of ice.


840.

what are plexus and ganglion ?kindly explain in detail about spinal nerve

Answer» what are plexus and ganglion ?kindly explain in detail about spinal nerve
841.

Half life of x = 2 × 10^9 yearsHalf life of y = 4 × 10^9 yearsAssuming rock initially was formed by equal number of x and y of radioactive sample. In the ancient rock discovered now is having concentration x : y = 1:4, the present age of the rock is? ~options->1.) 2 × 10^9 years2.) 4 × 10^9 years3.) 6 × 10^9 years4.) 8 × 10^9 years

Answer» Half life of x = 2 × 10^9 years
Half life of y = 4 × 10^9 years
Assuming rock initially was formed by equal number of x and y of radioactive sample. In the ancient rock discovered now is having concentration x : y = 1:4, the present age of the rock is?
~options->
1.) 2 × 10^9 years
2.) 4 × 10^9 years
3.) 6 × 10^9 years
4.) 8 × 10^9 years
842.

Communicable diseases are spread by coming in contact with __________ .

Answer»

Communicable diseases are spread by coming in contact with __________ .


843.

Term ‘hybridoma’ implies:

Answer»

Term ‘hybridoma’ implies:



844.

A type of reproduction in which a single cell splits into equal parts and each part grows into a complete individual:

Answer»

A type of reproduction in which a single cell splits into equal parts and each part grows into a complete individual:


845.

Briefly explain the process of budding in yeast.

Answer» Briefly explain the process of budding in yeast.
846.

What type of adverb clause is underlined in the sentence? Drink adequate amount of water with food because it aids digestion.

Answer»

What type of adverb clause is underlined in the sentence?

Drink adequate amount of water with food because it aids digestion.


847.

Digestion needs the help of two or more systems in the body to provide energy from food.which are these systems and how do they help?

Answer»

Digestion needs the help of two or more systems in the body to provide energy from food.which are these systems and how do they help?

848.

how do replenishment of nutrients like nitrogen and phosphorus take place in the soil ?

Answer» how do replenishment of nutrients like nitrogen and phosphorus take place in the soil ?
849.

Question 5The term that is used for the mode of nutrition in yeast, mushroom and bread-mould is(a) autotrophic(b) insectivorous(c) saprophytic(d) parasitic

Answer»

Question 5

The term that is used for the mode of nutrition in yeast, mushroom and bread-mould is



(a) autotrophic

(b) insectivorous

(c) saprophytic

(d) parasitic



850.

Of both father and mother, who contributes more amount of genetic material to the child?

Answer»

Of both father and mother, who contributes more amount of genetic material to the child?