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6701.

Which of the following is not a dual gland?

Answer»

Which of the following is not a dual gland?


6702.

Which different products can be produced with the help of microbes ?

Answer» Which different products can be produced with the help of microbes ?
6703.

Class Reptilia have the following characteristics

Answer»

Class Reptilia have the following characteristics


6704.

The ___ is a waxy layer secreted by the epidermis on the two surfaces of the leaf.

Answer»

The ___ is a waxy layer secreted by the epidermis on the two surfaces of the leaf.


6705.

Find the answer that best matches the underlined word/phrase: Were you able to recover your stolen laptop?

Answer»

Find the answer that best matches the underlined word/phrase:

Were you able to recover your stolen laptop?


6706.

Lysozyme is an enzyme present in __________ .

Answer»

Lysozyme is an enzyme present in __________ .


6707.

Question 2 (a) Yeast is used in the production of : a) Sugar b) Alcohol c) HCl d) Oxygen

Answer»

Question 2 (a)
Yeast is used in the production of :
a) Sugar
b) Alcohol
c) HCl
d) Oxygen

6708.

What happens when injury is caused to 1.medulla oblangata 2.spinal cord

Answer»

What happens when injury is caused to

1.medulla oblangata

2.spinal cord

6709.

The systolic part of normal blood pressure showing 120/80 Hg actually points to the pressure that ___

Answer»

The systolic part of normal blood pressure showing 120/80 Hg actually points to the pressure that ___


6710.

What is the difference between sanctuary and national park?

Answer» What is the difference between sanctuary and national park?
6711.

Can I define gene as a segment of DNA which carries heridetary information of an organism ??

Answer» Can I define gene as a segment of DNA which carries heridetary information of an organism ??
6712.

Question 20 Boojho took some grains of boiled rice in test tube ‘A’ and Paheli took boiled and chewed rice in test tube ‘B’. Both of them poured 1 - 2 drops of iodine solution into the test tube and observed the colour change. What colour change would they have observed? Give reasons for your answer.

Answer»

Question 20
Boojho took some grains of boiled rice in test tube ‘A’ and Paheli took boiled and chewed rice in test tube ‘B’. Both of them poured 1 - 2 drops of iodine solution into the test tube and observed the colour change. What colour change would they have observed? Give reasons for your answer.

6713.

Why rely neurons are needed ? Can't sensory neurons connect themselve to motor nurom

Answer»

Why rely neurons are needed ? Can't sensory neurons connect themselve to motor nurom

6714.

The _______ character appears in F1 generation when the progenies are heterozygous.

Answer»

The _______ character appears in F1 generation when the progenies are heterozygous.

6715.

Explain the importance of fossils in deciding evolutionary relationships. [5 MARKS]

Answer» Explain the importance of fossils in deciding evolutionary relationships. [5 MARKS]
6716.

A person is having problems with calcium metabolism in his body. Which one of the following glands may not be functioning properly?

Answer»

A person is having problems with calcium metabolism in his body. Which one of the following glands may not be functioning properly?


6717.

___ is the largest vein in the body.

Answer»

___ is the largest vein in the body.


6718.

Structural and functional units of testes are

Answer»

Structural and functional units of testes are


6719.

Why is pituitary gland called the master gland? [1 MARK]

Answer» Why is pituitary gland called the master gland? [1 MARK]
6720.

Zn | Zn2+ (C1) || Zn2+ (C2) | Zn. For this cell G is negative if

Answer»

Zn | Zn2+ (C1) || Zn2+ (C2) | Zn. For this cell G is negative if


6721.

Match the following: 1.This part of the brain tells us (i)Cerebellumwhether we are hungry or full2.This part of the brain is responsible (ii)Medullafor precision of voluntary actions3.Involuntary actions like vomiting and salivation (iii)Fore−brainare controlled by this part of the brain​

Answer»

Match the following:

1.This part of the brain tells us (i)Cerebellumwhether we are hungry or full2.This part of the brain is responsible (ii)Medullafor precision of voluntary actions3.Involuntary actions like vomiting and salivation (iii)Forebrainare controlled by this part of the brain


6722.

The given diagram represents a stage during cell division. Study the same and then answer the questions that follow: [5 MARKS] (a) Name the parts labeled 2 and 3 (b) Identify the above stage and give a reason in support of your answer. (c) Mention where in the body, this type of cell division occurs. (d) Name the stage prior to this stage and draw a diagram to represent the same.

Answer» The given diagram represents a stage during cell division. Study the same and then answer the questions that follow: [5 MARKS]

(a) Name the parts labeled 2 and 3
(b) Identify the above stage and give a reason in support of your answer.
(c) Mention where in the body, this type of cell division occurs.
(d) Name the stage prior to this stage and draw a diagram to represent the same.

6723.

Assisted Reproductive Technology does not include

Answer»

Assisted Reproductive Technology does not include



6724.

What happens to the glucose which enters the nephron tubule along with filtrate?

Answer» What happens to the glucose which enters the nephron tubule along with filtrate?
6725.

How to grafting a rose plant

Answer»

How to grafting a rose plant

6726.

Which mineral essential for the formation of haemoglobin in red blood cells

Answer»

Which mineral essential for the formation of haemoglobin in red blood cells

6727.

Fighting a rising tide of illegal fishing, four boats poaching sea cucumbers and other marine life caught in their waters have been set on fire by the island nation.

Answer»

Fighting a rising tide of illegal fishing, four boats poaching sea cucumbers and other marine life caught in their waters have been set on fire by the island nation.

6728.

On selfing a plant of F1 generation having a genotype AABbCC, the phenotypic ratio in F2 generation will be:

Answer»

On selfing a plant of F1 generation having a genotype AABbCC, the phenotypic ratio in F2 generation will be:


6729.

Urine enters the ureter and then it is stored in gallbladder? Why?

Answer» Urine enters the ureter and then it is stored in gallbladder? Why?
6730.

(a) What does a root do in response to gravity? What is this phenomenon known as? (b) What does a stem (or shoot) do in response to light? What is this phenomenon known as?

Answer»

(a) What does a root do in response to gravity? What is this phenomenon known as?

(b) What does a stem (or shoot) do in response to light? What is this phenomenon known as?

6731.

had a doubt while reading life process Pg: 97 1st para Massive amount of gaseous exchange takes place in the leaves through these pores(stomata)for photosynthesis but imp to note that gaseous exchange occur across the surface of stem root and leaves as well. does these stem and roots also have stomata for gaseous exchange or something else is responsible for it?

Answer»

had a doubt while reading life process

Pg: 97 1st para

Massive amount of gaseous exchange takes place in the leaves through these pores(stomata)for photosynthesis but imp to note that gaseous exchange occur across the surface of stem root and leaves as well.

does these stem and roots also have stomata for gaseous exchange or something else is responsible for it?

6732.

Which one is applicable to insect-pollinated flowers?

Answer»

Which one is applicable to insect-pollinated flowers?


6733.

The components of blood involved in transport of O2 and CO2 are:

Answer»

The components of blood involved in transport of O2 and CO2 are:


6734.

Explain the following: [3 MARKS] (a) Some ladies develop beard, moustache and a masculine voice. (b) Mouth dries up and heartbeat increases during maiden speech. (c) Milk is secreted from the breast of the mother during sucking by the infant.

Answer» Explain the following: [3 MARKS]
(a) Some ladies develop beard, moustache and a masculine voice.
(b) Mouth dries up and heartbeat increases during maiden speech.
(c) Milk is secreted from the breast of the mother during sucking by the infant.
6735.

Which of the following does not use asexual mode of reproduction?

Answer»

Which of the following does not use asexual mode of reproduction?


6736.

Cows have how many stomachs?

Answer»

Cows have how many stomachs?


6737.

(a) What changes are seen in boys at the time of puberty? (b) Name the organs which produce sperms in human males. (c) Draw a labelled diagram of the human male reproductive system. With the help of this diagram, describe the working of a human male reproductive system? (d) What is the role of seminal vesicles and prostate gland in the human male reproductive system?

Answer»

(a) What changes are seen in boys at the time of puberty?
(b) Name the organs which produce sperms in human males.
(c) Draw a labelled diagram of the human male reproductive system. With the help of this diagram, describe the working of a human male reproductive system?
(d) What is the role of seminal vesicles and prostate gland in the human male reproductive system?

6738.

Inside cell, breakdown of pyruvate into carbon dioxide and water occurs in:

Answer»

Inside cell, breakdown of pyruvate into carbon dioxide and water occurs in:


6739.

The farmers have been cultivating a food plant X for over two thousand years and have produced as many as five entirely different looking vegetables A, B, C, D and E from it. (a) What could the plant X be? (b) What are A, B, C, D and E? (c) What is the process of evolution involved in this example known as?

Answer»

The farmers have been cultivating a food plant X for over two thousand years and have produced as many as five entirely different looking vegetables A, B, C, D and E from it.
(a) What could the plant X be?
(b) What are A, B, C, D and E?
(c) What is the process of evolution involved in this example known as?

6740.

Identify the stages of cell division based on the movement of chromosomes at each level and choose the correct option.

Answer»

Identify the stages of cell division based on the movement of chromosomes at each level and choose the correct option.


6741.

How one is change adopted to perform different functions? Give one example.

Answer» How one is change adopted to perform different functions? Give one example.
6742.

What is meant by family welfare centres? What is the symbol of family welfare in our country? [2 MARKS]

Answer» What is meant by family welfare centres? What is the symbol of family welfare in our country? [2 MARKS]
6743.

What is a plant hormone? Name four plant hormones. State one function of each.

Answer»

What is a plant hormone? Name four plant hormones. State one function of each.

6744.

Fallopian tube in female reproductive system helps in ________.

Answer»

Fallopian tube in female reproductive system helps in ________.


6745.

Which of the following is not a part of the female reproductive system in human beings?

Answer»

Which of the following is not a part of the female reproductive system in human beings?


6746.

Pituitary gland is located ______.

Answer»

Pituitary gland is located ______.


6747.

Australopithecus afarensis lived in ___

Answer»

Australopithecus afarensis lived in ___


6748.

The area of the brain along with thalamus, which acts as an emotional centre to controls memory, learning, motivation, sexual arousal and pleasure is ______.

Answer»

The area of the brain along with thalamus, which acts as an emotional centre to controls memory, learning, motivation, sexual arousal and pleasure is ______.


6749.

Do all organisms give birth to individuals like humans ?

Answer» Do all organisms give birth to individuals like humans ?
6750.

Archaeoptery shows features of

Answer»

Archaeoptery shows features of