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2151.

Write short notes onAcid rain.

Answer»

Write short notes on



Acid rain.

2152.

Name the substance whose build up in the muscles during vigorous physical exercise may cause cramps.

Answer»

Name the substance whose build up in the muscles during vigorous physical exercise may cause cramps.

2153.

Which of the following is not a component of a thin filament?

Answer»

Which of the following is not a component of a thin filament?


2154.

How do sperm cells move?

Answer» How do sperm cells move?
2155.

Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct?

Answer»

Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct?


2156.

Sympathetic is to_________________ as parasympathetic is to _____________________.

Answer»

Sympathetic is to_________________ as parasympathetic is to _____________________.



2157.

Removal of all kind of waste from the body is included under 'excretion'. Do you agree? Give reasons?

Answer» Removal of all kind of waste from the body is included under 'excretion'. Do you agree? Give reasons?
2158.

Give a flow chart regarding amount of DNA ; No of chromosome ; No of bivalents ; for meiotic division and mitotic division

Answer» Give a flow chart regarding amount of DNA ; No of chromosome ; No of bivalents ; for meiotic division and mitotic division
2159.

why ACTH only stimulates secretion of glucocorticoids from adrenal cortex? What about the other steroid hormones of adrenal cortex?

Answer» why ACTH only stimulates secretion of glucocorticoids from adrenal cortex? What about the other steroid hormones of adrenal cortex?
2160.

In every human eye, there is a spot known as the "blind spot" where:

Answer»

In every human eye, there is a spot known as the "blind spot" where:



2161.

a women with one gene for haemophillia and a gne for coloirblindness on one X chromosome marries a normal man . how will the progeny be ?

Answer» a women with one gene for haemophillia and a gne for coloirblindness on one X chromosome marries a normal man . how will the progeny be ?
2162.

Stomata of CAM plants

Answer»

Stomata of CAM plants


2163.

List few environmental problems

Answer»

List few environmental problems

2164.

The end product of photosynthesis which is a carbon compound is ____ and is converted into ____.

Answer»

The end product of photosynthesis which is a carbon compound is ____ and is converted into ____.



2165.

Notice these expressions in the text. Infer their meaning from the context. the thought was almost revolting an expanse of pure white serenity a turning-point accepted her seclusion with resignation a veritable bedlam of chirrupings frivolous rebukes the sagging skins of the dilapidated drum

Answer»

Notice these expressions in the text. Infer their meaning from the context.





  • the thought was almost revolting




  • an expanse of pure white serenity




  • a turning-point




  • accepted her seclusion with resignation




  • a veritable bedlam of chirrupings




  • frivolous rebukes




  • the sagging skins of the dilapidated drum



2166.

More than One Answer Typeएक से अधिक उत्तर प्रकार के प्रश्नChoose the correct pair(s).सही युग्म (युग्मों) का चयन कीजिए।

Answer»

More than One Answer Type

एक से अधिक उत्तर प्रकार के प्रश्न



Choose the correct pair(s).



सही युग्म (युग्मों) का चयन कीजिए।

2167.

Question 42How are general growth and sexual maturation different from each other?

Answer»

Question 42

How are general growth and sexual maturation different from each other?



2168.

One of the internal factors which affect the rate of transpiration is A .big size of leaf B .colour of the leaf C. sunken stomata D .sunny day

Answer»

One of the internal factors which affect the rate of transpiration is

A .big size of leaf
B .colour of the leaf
C. sunken stomata
D .sunny day
2169.

In the embryonic growing period, the production of RBC takes place in

Answer»

In the embryonic growing period, the production of RBC takes place in


2170.

The main energy transformation that occurs in photosynthesis in green leaves is

Answer»

The main energy transformation that occurs in photosynthesis in green leaves is


2171.

Variations are raw materials for evolution because they__________

Answer»

Variations are raw materials for evolution because they__________


2172.

Define the process of transcription.

Answer» Define the process of transcription.
2173.

How does the autonomic nervous system help us in dealing with an emergency situation?

Answer»

How does
the autonomic nervous system help us in dealing with an emergency
situation?

2174.

In annelids, excretory organs are ___ .

Answer» In annelids, excretory organs are ___ .
2175.

Which of the following statements about photosynthesis is correct?

Answer»

Which of the following statements about photosynthesis is correct?


2176.

Which is the common passage for food and air?

Answer» Which is the common passage for food and air?
2177.

Liver infection or ___ is related to Hepatitis B and is caused by the Hepatitis B Virus (HBV).

Answer» Liver infection or ___ is related to Hepatitis B and is caused by the Hepatitis B Virus (HBV).
2178.

The accessory glands of male reproductive system include _____________.

Answer» The accessory glands of male reproductive system include _____________.
2179.

A normal cell of human body contains 23 pairs of chromosomes. The number of chromosomes in a sex cell(sperm or ovum) of a human being is most likely to be : (a) 46 (b) 23 (c) 21 (d) 42

Answer»

A normal cell of human body contains 23 pairs of chromosomes. The number of chromosomes in a sex cell(sperm or ovum) of a human being is most likely to be :

(a) 46 (b) 23 (c) 21 (d) 42

2180.

Mention and explain different ways by which turtles and tortoises respire.

Answer» Mention and explain different ways by which turtles and tortoises respire.
2181.

Which of the following is incorrect?

Answer»

Which of the following is incorrect?


2182.

Name the organ that acts as an endocrine gland as well as an exocrine gland. Enter 1 word only.

Answer»

Name the organ that acts as an endocrine gland as well as an exocrine gland.

Enter 1 word only.

2183.

Adipose tissue is most abundant in the ___layer under the skin.

Answer»

Adipose tissue is most abundant in the ___layer under the skin.

2184.

Which of the following is a connecting animal of reptiles and mammals? (a) Platypus. (b) Peripatus (c) Paramecium (d) Platythacium

Answer» Which of the following is a connecting animal of reptiles and mammals?
(a) Platypus. (b) Peripatus
(c) Paramecium (d) Platythacium
2185.

Which of the following are produced by genetic engineering?

Answer»

Which of the following are produced by genetic engineering?


2186.

How an increase ib blood pressure increase the GFR?

Answer» How an increase ib blood pressure increase the GFR?
2187.

A man has a far point of 2m from the retina.Find the nature and power ofspectacles he will u

Answer» A man has a far point of 2m from the retina.Find the nature and power ofspectacles he will u
2188.

The picture shows the process of

Answer»

The picture shows the process of


2189.

explain about the ionisation enthalpy.

Answer» explain about the ionisation enthalpy.
2190.

What does peripheral nervous system consist of? Where does it originate from?

Answer» What does peripheral nervous system consist of? Where does it originate from?
2191.

which has more bioling point ortho nitrophenol or pheno

Answer» which has more bioling point ortho nitrophenol or pheno
2192.

Name of a parasitic plant which has yellow slender tubular stem? What is its special root called? [2 MARKS]

Answer»

Name of a parasitic plant which has yellow slender tubular stem? What is its special root called? [2 MARKS]

2193.

Which of the following organisms is a producer?

Answer»

Which of the following organisms is a producer?


2194.

Which compounds are responsible for the depletion of the ozone layer?

Answer» Which compounds are responsible for the depletion of the ozone layer?
2195.

Which among the following processes releases more energy?

Answer»

Which among the following processes releases more energy?



2196.

Label the parts of the respiratory system

Answer»

Label the parts of the respiratory system





2197.

What pigments in blood helps in transport of oxygen in humans?

Answer»

What pigments in blood helps in transport of oxygen in humans?



2198.

Assertion : Root pressure can provide a modest pull in the overall water transport in plants. Reason : It does play an important role in water movement in tall trees.

Answer»

Assertion : Root pressure can provide a modest pull in the overall water transport in plants.

Reason : It does play an important role in water movement in tall trees.


2199.

(a) State Mendel's Law of dominance. (b) What is a dihybrid ratio? (c) Define phenotype. (d) What are autosomes? [4 MARKS]

Answer» (a) State Mendel's Law of dominance.
(b) What is a dihybrid ratio?
(c) Define phenotype.
(d) What are autosomes? [4 MARKS]
2200.

The instrument by which BP of a person is measured is called as___

Answer»

The instrument by which BP of a person is measured is called as___