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351.

what are the functions of compound eyes in cockroach, phallomer, hind wings, tegmina, sclereids and hypopharyx

Answer» what are the functions of compound eyes in cockroach, phallomer, hind wings, tegmina, sclereids and hypopharyx
352.

How do pathogens enter our body ? Give examples of pathogens

Answer»

How do pathogens enter our body ? Give examples of pathogens

353.

Choose the correct option. Mycorrhiza helps in (i) absorption of water (ii) mineral nutrition (iii) translocation (iv) gaseous exchange

Answer» Choose the correct option. Mycorrhiza helps in
(i) absorption of water (ii) mineral nutrition (iii) translocation (iv) gaseous exchange
354.

Which of the following is/are used for tilling?

Answer»

Which of the following is/are used for tilling?



355.

Which of the following is not a use of water in a plant?

Answer»

Which of the following is not a use of water in a plant?


356.

14.what is the difference between the binary fission of bacteria and amoeba

Answer» 14.what is the difference between the binary fission of bacteria and amoeba
357.

Detail explination of transportation pull?

Answer» Detail explination of transportation pull?
358.

Why animals don't have plastids

Answer»

Why animals don't have plastids

359.

What is structure of dna

Answer» What is structure of dna
360.

Why is blood group AB is called universal recipient??? three point

Answer»

Why is blood group AB is called universal recipient???

three point

361.

Explain the function of lymph with reference to 1.Absorption of fats 2.Defence mechanism Also explain what are lymphatics with reference to absorption of fats.

Answer»

Explain the function of lymph with reference to

1.Absorption of fats

2.Defence mechanism

Also explain what are lymphatics with reference to absorption of fats.

362.

Which of the following is a carrier of the dengue virus?

Answer»

Which of the following is a carrier of the dengue virus?


363.

Trophic level means _____.

Answer» Trophic level means _____.
364.

a) What is a gonad?(b) Why is it called primary sex organ?(c) Give its secondary function.

Answer» a) What is a gonad?

(b) Why is it called primary sex organ?

(c) Give its secondary function.
365.

A plant "X” is explained as follows: The plant body is called thallus. The cells are typically eukaryotic with a prominent nucleus and many plastids. The cell wall is composed of cellulose and pectin. Along with chlorophyll another pigment called xanthophylls is present.Out of the given names "X” can be-

Answer»

A plant "X” is explained as follows:
The plant body is called thallus. The cells are typically eukaryotic with a prominent nucleus and many plastids. The cell wall is composed of cellulose and pectin. Along with chlorophyll another pigment called xanthophylls is present.Out of the given names "X” can be-


366.

Question 4Which of the following disease is caused by bacteria?(a) Typhoid(b) Anthrax(c) Tuberculosis(d) Malaria

Answer»

Question 4

Which of the following disease is caused by bacteria?




(a) Typhoid

(b) Anthrax

(c) Tuberculosis

(d) Malaria



367.

Name any two (a) bacteria (b) viruses (c) protozoa (d) algae, and (e) fungi.

Answer»

Name any two (a) bacteria (b) viruses (c) protozoa (d) algae, and (e) fungi.

368.

I am long and tubular. I transport dissolved minerals and water but not food. Can you identify me?

Answer»

I am long and tubular. I transport dissolved minerals and water but not food. Can you identify me?


369.

What will happen if all carnivores are removed from a forest?

Answer» What will happen if all carnivores are removed from a forest?
370.

Fill in the blanks: The stage of life when a human becomes capable of reproduction is called ________

Answer» Fill in the blanks: The stage of life when a human becomes capable of reproduction is called ________
371.

The carbon assimilation step of photosynthesis

Answer»

The carbon assimilation step of photosynthesis


372.

Choose the appropriate methods used in organic farming.

Answer»

Choose the appropriate methods used in organic farming.


373.

Lub-dub sound is due to

Answer»

Lub-dub sound is due to


374.

What are sex harmonies?why are they so called? Mention their functions?

Answer» What are sex harmonies?why are they so called? Mention their functions?
375.

Recently a company in Bangalore made ink with the carbon in the air . How do they extract it? How do they convert it into the carbon ink ?

Answer» Recently a company in Bangalore made ink with the carbon in the air . How do they extract it? How do they convert it into the carbon ink ?
376.

Question 9What are antibiotics? What precautions must be taken while taking antibiotics?

Answer»

Question 9

What are antibiotics? What precautions must be taken while taking antibiotics?



377.

Fill in the blanks and explain the statements.a. After complete oxidation of a glucose molecules, ---- --- --- number of ATP molecules are formed.b. At the end of glycolysis, ---- --- -- molecules are obtained.c. Genetic recombination occurs in -- -- -- phase of prophase of meiosis-I.d. All chromosomes are arranged parallel to equatorial plane of cell in -- -- -- phase of mitosis.e. For formation of plasma membrane, --- --- --- molecules are necessary.f. Our muscle cells perform -- -- -- type of respiration during exercise.

Answer» Fill in the blanks and explain the statements.

a. After complete oxidation of a glucose molecules, ---- --- --- number of ATP molecules are formed.

b. At the end of glycolysis, ---- --- -- molecules are obtained.

c. Genetic recombination occurs in -- -- -- phase of prophase of meiosis-I.

d. All chromosomes are arranged parallel to equatorial plane of cell in -- -- -- phase of mitosis.

e. For formation of plasma membrane, --- --- --- molecules are necessary.

f. Our muscle cells perform -- -- -- type of respiration during exercise.
378.

Write a brief note on microbes.

Answer» Write a brief note on microbes.
379.

What is gelatinous sheath

Answer» What is gelatinous sheath
380.

Which of the following endocrine gland is found only in males?

Answer»

Which of the following endocrine gland is found only in males?


381.

Question 44Water hyacinth floats on water surface. Explain

Answer»

Question 44

Water hyacinth floats on water surface. Explain



382.

a) What causes food poisoning?b) Give two examples of pathogens that causes food poisoning.c) Mention some symptoms of food poisoning.

Answer» a) What causes food poisoning?

b) Give two examples of pathogens that causes food poisoning.

c) Mention some symptoms of food poisoning.
383.

List the harmful effects caused by alcohol/ drug abuse.

Answer»

List the harmful effects caused by alcohol/ drug abuse.

384.

What is menopause? When does it occur? [2 MARKS]

Answer»

What is menopause? When does it occur? [2 MARKS]

385.

What are possible unit cells in two dimensions ?

Answer» What are possible unit cells in two dimensions ?
386.

The emergency hormone to face the risk is secreted by

Answer»

The emergency hormone to face the risk is secreted by


387.

Many of us uses skin bleaching agents. What kind of reaction does it cause on our skin?

Answer»

Many of us uses skin bleaching agents. What kind of reaction does it cause on our skin?


388.

The pyramid of numbers shows decrease in both, numbers and ___

Answer» The pyramid of numbers shows decrease in both, numbers and ___
389.

What is the another name of cytoplasm

Answer»

What is the another name of cytoplasm

390.

Cleavage include the rapid mitotic division of zygote to form a single layered hollow spherical structure called

Answer» Cleavage include the rapid mitotic division of zygote to form a single layered hollow spherical structure called
391.

A replacement for paper that is obtained from plants can be

Answer»

A replacement for paper that is obtained from plants can be



392.

___ are two hormones produced by ovary which take part in menstrual cycle and maintenance of pregnancy.

Answer»

___ are two hormones produced by ovary which take part in menstrual cycle and maintenance of pregnancy.

393.

The egg whites give purple/ violet colour on adding the solution of copper sulphate and caustic soda. This indicates the presence of _____ in it.

Answer» The egg whites give purple/ violet colour on adding the solution of copper sulphate and caustic soda. This indicates the presence of _____ in it.
394.

What was the reason for the anxiety of Paul's mother as he grew older?

Answer»

What was the reason for the anxiety of Paul's mother as he grew older?

395.

HelloHow will the diagram of Simple Squamous with Basement membrane be.

Answer» Hello
How will the diagram of Simple Squamous with Basement membrane be.
396.

Trophic level means _____.

Answer»

Trophic level means _____.



397.

What is tunnelling microscope

Answer» What is tunnelling microscope
398.

Does the number of photoelectrons emitted and photo electric current generated depend on the wavelength of incident light . if yes, then explain how

Answer» Does the number of photoelectrons emitted and photo electric current generated depend on the wavelength of incident light . if yes, then explain how
399.

In a Human body, cells like blood cells and skin cells keep on dividing to replace the dead cells. Then why are doctors worried about the head injury?

Answer»

In a Human body, cells like blood cells and skin cells keep on dividing to replace the dead cells. Then why are doctors worried about the head injury?

400.

Identify the crop cultivated in the given figure:

Answer»

Identify the crop cultivated in the given figure: