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851.

The function of reflex arcs and reflex action mechanism is primarily to ___________.

Answer»

The function of reflex arcs and reflex action mechanism is primarily to ___________.


852.

How are involuntary actions and reflex actions different from each other?

Answer» How are involuntary actions and reflex actions different from each other?
853.

These are elongated cells with minute pores forming a part of a complex permanent tissue.

Answer»

These are elongated cells with minute pores forming a part of a complex permanent tissue.


854.

What is meant by Squamous Epithelium

Answer»

What is meant by Squamous Epithelium

855.

Complétez avec l'article avec l'article partitif.

Answer» Complétez avec l'article avec l'article partitif.
856.

Do bats have wings?

Answer»

Do bats have wings?

857.

If the monthly mean of average daily temperature for the hottest month of the year is 25∘C and the monthly mean of the maximum dally temperatures of the same month of the year is 46∘C , then the airport reference temperature is 0∘C.32

Answer» If the monthly mean of average daily temperature for the hottest month of the year is 25C and the monthly mean of the maximum dally temperatures of the same month of the year is 46C , then the airport reference temperature is 0C.
  1. 32
858.

Regarding the assertion and reason, select the right option. Assertion [A]: Water scarcity has led to arsenic and fluoride contamination of water. Reason [R]: As the water gets scarce, the concentration of minerals such as arsenic and fluoride increases.

Answer»

Regarding the assertion and reason, select the right option.
Assertion [A]: Water scarcity has led to arsenic and fluoride contamination of water.
Reason [R]: As the water gets scarce, the concentration of minerals such as arsenic and fluoride increases.

859.

Read the following passage carefully and answer the questions that follow it. Bile juice is stored in a sac called, gallbladder, located near its organ of secretion, the liver. The gallbladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas.(a) Which organ secretes the bile juice?(b) Why is digestion of fats difficult as compared to that of other nutrients?(c) How does bile juice help in the digestion of fat?(d) Where is the digestion of fat completed?(e) Does bile juice digest fat completely?

Answer» Read the following passage carefully and answer the questions that follow it. Bile juice is stored in a sac called, gallbladder, located near its organ of secretion, the liver. The gallbladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas.



(a) Which organ secretes the bile juice?

(b) Why is digestion of fats difficult as compared to that of other nutrients?

(c) How does bile juice help in the digestion of fat?

(d) Where is the digestion of fat completed?

(e) Does bile juice digest fat completely?


860.

Which of the following joints allow forward and backward movement of head?

Answer»

Which of the following joints allow forward and backward movement of head?


861.

Fertilisation would occur only if the ovulation has occurred during middle of menstrual cycle?

Answer» Fertilisation would occur only if the ovulation has occurred during middle of menstrual cycle?
862.

The digestive gland present within the walls of the ileum is known as

Answer»

The digestive gland present within the walls of the ileum is known as


863.

Why iodine is necessary in diet? Name the disease caused due to the deficiency of iodine.

Answer» Why iodine is necessary in diet? Name the disease caused due to the deficiency of iodine.
864.

Which of the following is the maximum amount of useful work that can be obtained from the cell?(a) △ G(b)△ G^o

Answer» Which of the following is the maximum amount of useful work that can be obtained from the cell?(a) △ G(b)△ G^o
865.

Who proposed five kingdom system of classification? Name those five kingdoms of living organisms.

Answer» Who proposed five kingdom system of classification? Name those five kingdoms of living organisms.
866.

Respiration in the absence of oxygen is called __ respiration.

Answer»

Respiration in the absence of oxygen is called __ respiration.



867.

Egg, meat and fish are rich sources of:

Answer»

Egg, meat and fish are rich sources of:



868.

Name the parts of the alimentary canal. [3 MARKS]

Answer» Name the parts of the alimentary canal. [3 MARKS]
869.

Why lysosomes is called as suicidal bags?

Answer» Why lysosomes is called as suicidal bags?
870.

Question 30Why are lysosomes known as ‘suicide-bags’ of a cell?

Answer»

Question 30

Why are lysosomes known as ‘suicide-bags’ of a cell?



871.

The __________ season has short days and long nights?

Answer»

The __________ season has short days and long nights?

872.

A non steroid hormone from heart to regulate the kidney function is

Answer»

A non steroid hormone from heart to regulate the kidney function is


873.

Rearrange the following words and match them to the picture above: (i) THNARE (ii) NTMEFILA (iii) LYSTE (iv) LEPTA (v) STIMAG

Answer»

Rearrange the following words and match them to the picture above:

(i) THNARE (ii) NTMEFILA (iii) LYSTE (iv) LEPTA (v) STIMAG


874.

Tap the correct utensil required to prepare the kadha prasad.

Answer»

Tap the correct utensil required to prepare the kadha prasad.

875.

Which is the organism present in the nodules of legimonous plant

Answer»

Which is the organism present in the nodules of legimonous plant

876.

In which of the following underground stem modifications, food is not stored in the stem?

Answer»

In which of the following underground stem modifications, food is not stored in the stem?


877.

First clinical gene therapy was given for treating:

Answer»

First clinical gene therapy was given for treating:


878.

List a few uses of nitrogen.

Answer»

List a few uses of nitrogen.
879.

A snail moves slowly with the help of its ___.

Answer»

A snail moves slowly with the help of its ___.


880.

Choose the correct order of blood flow from the heart to body and back to the heart.

Answer»

Choose the correct order of blood flow from the heart to body and back to the heart.



881.

Which of the following is/are bryophytes?

Answer»

Which of the following is/are bryophytes?


882.

Given below are jumbled words which are names of the parts of the plant. Rearrange them to get the correct words.(a) L I L C H I(b) I T R U F(c) S E A N B O Y A(d) R O U N D G U N T

Answer» Given below are jumbled words which are names of the parts of the plant. Rearrange them to get the correct words.

(a) L I L C H I

(b) I T R U F

(c) S E A N B O Y A

(d) R O U N D G U N T


883.

निम्नलिखित पंक्तियों का काव्य-सौंदर्य स्पष्ट कीजिए-(क) विश्व का क्रंदन ................... अपने लिए कारा बनाना!(ख) कह न ठंडी साँस ..................... सजेगा आज पानी।(ग) है तुझे अंगार-शय्या .................... कलियाँ बिछाना!

Answer» निम्नलिखित पंक्तियों का काव्य-सौंदर्य स्पष्ट कीजिए-

(क) विश्व का क्रंदन ................... अपने लिए कारा बनाना!

(ख) कह न ठंडी साँस ..................... सजेगा आज पानी।

(ग) है तुझे अंगार-शय्या .................... कलियाँ बिछाना!
884.

Are non-green plants autotrophs or heterotrophs?

Answer» Are non-green plants autotrophs or heterotrophs?
885.

How many type of WBC in human body

Answer» How many type of WBC in human body
886.

Write one similarity and one difference between the mittiyon in amoeba and human beings

Answer»

Write one similarity and one difference between the mittiyon in amoeba and human beings

887.

Write a short note on reproductive parts of a plant.

Answer» Write a short note on reproductive parts of a plant.
888.

Which organ is not involved in breathing?

Answer»

Which organ is not involved in breathing?


889.

Name the three friends. Where did they go one day? What did they want to do?

Answer»

  • Name the three friends.

  • Where did they go one day?

  • What did they want to do?

890.

Select the mismatch pair from the following:

Answer»

Select the mismatch pair from the following:



891.

In Antarctica, food rarely gets spoiled. Why?

Answer»

In Antarctica, food rarely gets spoiled. Why?



892.

Why insectivores plants are partially autotrophs and partially heterotrophs?

Answer»

Why insectivores plants are partially autotrophs and partially heterotrophs?

893.

Which of the following methods can be used to obtain a definitive diagnosis of type I insulin–dependent diabetes?

Answer»

Which of the following methods can be used to obtain a definitive diagnosis of type I insulin–dependent diabetes?


894.

The major sources of noise pollution are

Answer»

The major sources of noise pollution are


895.

Assertion (A): Lysosomes help in respiration.Reason (R): Lysosomes contain hydrolytic enzymes.

Answer» Assertion (A): Lysosomes help in respiration.

Reason (R): Lysosomes contain hydrolytic enzymes.
896.

Increased asthmatic attacks in certain seasons are related to:

Answer»

Increased asthmatic attacks in certain seasons are related to:


897.

The pyramid of numbers shows decrease in both numbers and ___

Answer» The pyramid of numbers shows decrease in both numbers and ___
898.

What is the job of the second wall of the stomach of a cow?

Answer»

What is the job of the second wall of the stomach of a cow?

899.

Read the lines in which the following phrases occur. Then discuss with your partner the meaning of each phrase in its context. (i) Velvet grass (ii) Drinking straws (iii) Meadow houses (iv) Amazing mound (v) Fuzzy head

Answer»

Read the lines in which
the following phrases occur. Then discuss with your partner the
meaning of each phrase in its context.


(i) Velvet grass


(ii) Drinking straws


(iii) Meadow houses


(iv) Amazing mound


(v) Fuzzy head

900.

Ovum always carries __chromosome.

Answer»

Ovum always carries __chromosome.