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5601.

Regarding assertion and reason, choose the right option. Assertion [A] : Different ecosystems have different species composition. Reason [R] : The type of species that can thrive in an ecosystem is dependent upon its geography, topography and climate.

Answer»

Regarding assertion and reason, choose the right option.
Assertion [A] : Different ecosystems have different species composition.
Reason [R] : The type of species that can thrive in an ecosystem is dependent upon its geography, topography and climate.


5602.

(a) An Amoeba cell can change its shape and a white blood cell in human blood can also change its shape. What is the difference between an Amoeba cell and a white blood cell? (b) Out of Amoeba cell and white blood cell, which one is (i) Eukaryotic cell (ii) Prokaryotic cell

Answer»

(a) An Amoeba cell can change its shape and a white blood cell in human blood can also change its shape. What is the difference between an Amoeba cell and a white blood cell?
(b) Out of Amoeba cell and white blood cell, which one is
(i) Eukaryotic cell
(ii) Prokaryotic cell

5603.

Number of chromosomes in daughter cell after meiosis are

Answer»

Number of chromosomes in daughter cell after meiosis are

5604.

Identify the following labeled parts of pituitary gland _____.

Answer»

Identify the following labeled parts of pituitary gland _____.


5605.

The egg cell measuring about 17 cm×13 cm is most likely that of :

Answer»

The egg cell measuring about 17 cm×13 cm is most likely that of :


5606.

Does the water only exist on the earth?

Answer»

Does the water only exist on the earth?

5607.

Which of the following factors endanger the existence of endemic species? i. destruction of habitat ii. increasing population iii. introduction of new species

Answer»

Which of the following factors endanger the existence of endemic species?

i. destruction of habitat

ii. increasing population

iii. introduction of new species


5608.

People fall ill because _____.

Answer»

People fall ill because _____.


5609.

The lower chambers of heart which pump with the maximum pressure are called _________. Choose the correct option.

Answer»

The lower chambers of heart which pump with the maximum pressure are called _________. Choose the correct option.


5610.

What are 4 microbes?

Answer» What are 4 microbes?
5611.

Which of the following is not a function of lysosome?

Answer»

Which of the following is not a function of lysosome?


5612.

Describe the method of pasteurisation for the preservation of milk.

Answer»

Describe the method of pasteurisation for the preservation of milk.

5613.

Which of the following wild animals is not listed in the Red Data Book of India? (a) black buck (b) flying squirrel , (c) tiger (d) leopard

Answer»

Which of the following wild animals is not listed in the Red Data Book of India?
(a) black buck
(b) flying squirrel ,
(c) tiger
(d) leopard

5614.

Which one is the correct sequence of steps involved in sexual reproduction?

Answer» Which one is the correct sequence of steps involved in sexual reproduction?
5615.

If growth hormone is produced by pituitary gland and it describes the height of a child then why people say that stretching can increase your height.

Answer» If growth hormone is produced by pituitary gland and it describes the height of a child then why people say that stretching can increase your height.
5616.

Briefly write about the importance of physical hygiene during adolescence

Answer»

Briefly write about the importance of physical hygiene during adolescence

5617.

Which among the following diseases has a genetic component and is associated with physical changes in the brain?

Answer»

Which among the following diseases has a genetic component and is associated with physical changes in the brain?


5618.

The correct set of the match about LH and FSH from the following table is___. (enter one of A, B, C or D) Target organSecretionCharacters developedA− TestesTestosteroneDevelopment of breastsB− TestesOestrogenDevelopment of acneC− OvariesOestrogenDevelopment of breastsD− OvariesTestosteroneDevelopment of acne

Answer»

The correct set of the match about LH and FSH from the following table is___. (enter one of A, B, C or D)


Target organSecretionCharacters developedA TestesTestosteroneDevelopment of breastsB TestesOestrogenDevelopment of acneC OvariesOestrogenDevelopment of breastsD OvariesTestosteroneDevelopment of acne


5619.

Identify the cell given in the picture __

Answer»

Identify the cell given in the picture


__
5620.

Homo sapiens is the scientific name of

Answer»

Homo sapiens is the scientific name of


5621.

Which of the following is not a crisis faced by the agricultural sector?

Answer»

Which of the following is not a crisis faced by the agricultural sector?


5622.

Which of the following is correct for the O blood group?

Answer»

Which of the following is correct for the O blood group?


5623.

Which of the following animals prefer being in dark places?

Answer»

Which of the following animals prefer being in dark places?


5624.

Who discovered cancer cell???????

Answer» Who discovered cancer cell???????
5625.

Answer the following 1) Manish conducted an experiment in the field related to the rate of percolation. He observed that it took 20 min for 400mL of water to percolate through the soil sample. Calculate the rate of percolation. 2) What is the importance of humus to the soil? [5 MARKS]

Answer»

Answer the following

1) Manish conducted an experiment in the field related to the rate of percolation. He observed that it took 20 min for 400mL of water to percolate through the soil sample. Calculate the rate of percolation.

2) What is the importance of humus to the soil? [5 MARKS]

5626.

Which of the following statement is the correct meaning of afforestation?

Answer»

Which of the following statement is the correct meaning of afforestation?


5627.

Nowadays, the usage of bioplastics is promoted more than ordinary plastics because:

Answer»

Nowadays, the usage of bioplastics is promoted more than ordinary plastics because:


5628.

Which part of cell initiates cell division

Answer» Which part of cell initiates cell division
5629.

Describe a method to maintain soil nutrients without using fertilisers or manures. [3 MARKS]

Answer»

Describe a method to maintain soil nutrients without using fertilisers or manures. [3 MARKS]

5630.

Name the hormone whose deficiency in the body causes goitre.

Answer»

Name the hormone whose deficiency in the body causes goitre.

5631.

Write short note on the following. (i) Hypertension (ii) Coronary Artery Disease

Answer»

Write short note on the following.

(i) Hypertension

(ii) Coronary Artery Disease

5632.

One of the following conditions is not linked to the deficiency of thyroid hormones:

Answer»

One of the following conditions is not linked to the deficiency of thyroid hormones:


5633.

Which of the following best describes the difference between phloem transport and xylem transport?

Answer»

Which of the following best describes the difference between phloem transport and xylem transport?


5634.

Why do you think mitochondria are clumped near the tail of the sperm ?

Answer» Why do you think mitochondria are clumped near the tail of the sperm ?
5635.

Which of the following diseases will occur if the pancreas is not working properly in our body?

Answer»

Which of the following diseases will occur if the pancreas is not working properly in our body?


5636.

Why are flowers that bloom at night more fragrant and usually white in colour?

Answer»

Why are flowers that bloom at night more fragrant and usually white in colour?


5637.

A flower having both the reproductive structures is called _______.

Answer»

A flower having both the reproductive structures is called _______.


5638.

Both carotenoids and chlorophylls

Answer»

Both carotenoids and chlorophylls


5639.

Which mode of reproduction is characterized by an offspring different from the parents?

Answer»

Which mode of reproduction is characterized by an offspring different from the parents?


5640.

Which of the following is not a basis for division of kingdoms in the five kingdom system?

Answer»

Which of the following is not a basis for division of kingdoms in the five kingdom system?


5641.

Arteries carries oxygenated blood but pulmonary artery carries deoxygenated blood and veins carry deoxygenated blood but pulmonary vein carries oxygenated blood is it true

Answer» Arteries carries oxygenated blood but pulmonary artery carries deoxygenated blood and veins carry deoxygenated blood but pulmonary vein carries oxygenated blood is it true
5642.

Which of the following is a correct statement.

Answer»

Which of the following is a correct statement.

5643.

Which of the following organisms reproduce by fragmentation?

Answer»

Which of the following organisms reproduce by fragmentation?


5644.

Who stated the cell theory and when?

Answer» Who stated the cell theory and when?
5645.

Which one does not occur in cyclic photophosphorylation?

Answer»

Which one does not occur in cyclic photophosphorylation?


5646.

Which of the following can lead to menstruation in a 21 year old woman during ovulation ? A. Sperms available for fertilisation B. Oviducts blocked C. Sperms not available for fertilisation D. Oviducts not blocked (a) A and B (b) B and C (c) A and C (d) B and D

Answer»

Which of the following can lead to menstruation in a 21 year old woman during ovulation ?

A. Sperms available for fertilisation B. Oviducts blocked

C. Sperms not available for fertilisation D. Oviducts not blocked

(a) A and B (b) B and C (c) A and C (d) B and D

5647.

The main nutrients present in fertilizers are nitrogen, phosphorus, and __________.

Answer»

The main nutrients present in fertilizers are nitrogen, phosphorus, and __________.


5648.

Cell membrane of root hair is

Answer»

Cell membrane of root hair is


5649.

Infectious disease which are not present in a given country or region is known as __________

Answer»

Infectious disease which are not present in a given country or region is known as __________


5650.

The diagram shows a plant. What is the pathway taken by the water absorbed by this plant?

Answer»

The diagram shows a plant. What is the pathway taken by the water absorbed by this plant?