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1951.

The pituitary gland is located below the:

Answer»

The pituitary gland is located below the:


1952.

Which tube in the heart shown in Figure 16.7 correctly represents the result of a successful coronary bypass operation?

Answer»

Which tube in the heart shown in Figure 16.7 correctly represents the result of a successful coronary bypass operation?

1953.

Sundari tree, a mangrove grows _____________ that prevent salt from entering plant body.

Answer»

Sundari tree, a mangrove grows _____________ that prevent salt from entering plant body.


1954.

Choose a unicellular organism from the following a.Lactobacilli b.Yeast c.Spirogyra d. Mushroom

Answer»

Choose a unicellular organism from the following

a.Lactobacilli

b.Yeast

c.Spirogyra

d. Mushroom


1955.

__ are edible and consumed by humans and other animals.

Answer»

__ are edible and consumed by humans and other animals.

1956.

The glands responsible for the secretion of oil in the skin are:

Answer»

The glands responsible for the secretion of oil in the skin are:


1957.

Saliva is responsible for:

Answer»

Saliva is responsible for:


1958.

Which of the following is a horticulture crop in India?

Answer»

Which of the following is a horticulture crop in India?


1959.

How can differentiate between primates and other orders like we can differentiate between them as primate menstruate whereas cow minkey has oestrus cycle like this differentiate between them in points.

Answer» How can differentiate between primates and other orders like we can differentiate between them as primate menstruate whereas cow minkey has oestrus cycle like this differentiate between them in points.
1960.

Father of a child is haemophilic and the mother is a carrier for the defective gene, the probability of the child having haemophilia is

Answer»

Father of a child is haemophilic and the mother is a carrier for the defective gene, the probability of the child having haemophilia is

1961.

Name the scientist who observed a thin slice of cork through a microscope and coined the term 'cell'.

Answer» Name the scientist who observed a thin slice of cork through a microscope and coined the term 'cell'.
1962.

We should avoid taking medicines/drugs unless prescribed by a doctor. Give reasons.

Answer» We should avoid taking medicines/drugs unless prescribed by a doctor. Give reasons.
1963.

The maximum volume of air contained in the lung by a full forced inhalation is called as ______

Answer»

The maximum volume of air contained in the lung by a full forced inhalation is called as ______



1964.

Which kingdom do a ladybug, a tick, and a deer belong to?

Answer»

Which kingdom do a ladybug, a tick, and a deer belong to?


1965.

How does disease spread through water?

Answer»

How does disease spread through water?

1966.

Which endocrine gland(s) is/are located at the base of the brain.

Answer»

Which endocrine gland(s) is/are located at the base of the brain.


1967.

The ___ of a hen is a single cell.

Answer»

The ___ of a hen is a single cell.

1968.

Axons of neurons bundle up to form the _________.

Answer»

Axons of neurons bundle up to form the _________.


1969.

How does root nodule help in agriculture?

Answer»

How does root nodule help in agriculture?

1970.

Question 7The phenomenon of marble cancer is due to(a) soot particles(b) CFCs(c) log(d) acid rain

Answer»

Question 7

The phenomenon of marble cancer is due to

(a) soot particles

(b) CFCs

(c) log

(d) acid rain



1971.

Four stages of binary fission in Amoeba are shown below. The stage at which nuclear fission and cytokinesis are observed is, stage:(1) I(2) II(3) III(4) IV

Answer» Four stages of binary fission in Amoeba are shown below. The stage at which nuclear fission and cytokinesis are observed is, stage:









(1) I

(2) II

(3) III

(4) IV
1972.

What is Omnis cellula-e-cellula?

Answer»

What is Omnis cellula-e-cellula?

1973.

Question 3 (a) Write short notes on the following. (a) Cytoplasm

Answer» Question 3 (a)
Write short notes on the following.
(a) Cytoplasm
1974.

Question 8Elephantiasis is caused by(a) Wuchereria(b) Pinworm(c) Planarians(d) Liver flukes

Answer»

Question 8

Elephantiasis is caused by




(a) Wuchereria

(b) Pinworm

(c) Planarians

(d) Liver flukes



1975.

Question 34What precautions will you take to justify “prevention is better than cure”.

Answer»

Question 34

What precautions will you take to justify “prevention is better than cure”.



1976.

The additional layer surrounding the cell membrane required by the plants for protection is

Answer»

The additional layer surrounding the cell membrane required by the plants for protection is


1977.

____________________ are present in the sense organs to receive external stimuli from the environment.

Answer»

____________________ are present in the sense organs to receive external stimuli from the environment.


1978.

What determines the shape of a cell?

Answer» What determines the shape of a cell?
1979.

Each of the following statements is wrong. Rewrite them correctly by changing either one or two words.a. Simple squamous epithelium is present in respiratory tract.b. Glandular epithelium is present in kidneys.c. Chlorenchyma helps the plant to float in water.d. Striated muscles are also called involuntary muscles.e. Chloroplast is present in permanent tissue.

Answer»
Each of the following statements is wrong. Rewrite them correctly by changing either one or two words.




a. Simple squamous epithelium is present in respiratory tract.


b. Glandular epithelium is present in kidneys.


c. Chlorenchyma helps the plant to float in water.


d. Striated muscles are also called involuntary muscles.


e. Chloroplast is present in permanent tissue.
1980.

The loss of water through the cuticles present in the leaf is known as ___.

Answer»

The loss of water through the cuticles present in the leaf is known as ___.


1981.

What is manure? [2 MARKS]

Answer»

What is manure? [2 MARKS]

1982.

Why is the pollen tube formed?

Answer»

Why is the pollen tube formed?


1983.

How to identify the structure of Monosacrid

Answer» How to identify the structure of Monosacrid
1984.

Why should we save paper? [3Marks]

Answer»

Why should we save paper? [3Marks]

1985.

NAME ALL THOSE POPULATION INTERACTIONS IN WHICH ONLY ONE SPECIES IS BENEFITTED.

Answer» NAME ALL THOSE POPULATION INTERACTIONS IN WHICH ONLY ONE SPECIES IS BENEFITTED.
1986.

Which of the following is not a characteristic of mushrooms?

Answer»

Which of the following is not a characteristic of mushrooms?


1987.

Question 2Make a sketch of the human nerve cell. What function do nerve cells perform?

Answer» Question 2

Make a sketch of the human nerve cell. What function do nerve cells perform?
1988.

Name the poisonous gas released from the industry at Bhopal?

Answer»

Name the poisonous gas released from the industry at Bhopal?


1989.

Question 11Although 2 cells called gametes fuse, the product formed is a single cell called zygote. Justify.

Answer» Question 11

Although 2 cells called gametes fuse, the product formed is a single cell called zygote. Justify.

1990.

The gap between two neurons is called ___.

Answer»

The gap between two neurons is called ___.

1991.

For what purpose are National Parks in our country established ?

Answer»

For what purpose are National Parks in our country established ?

1992.

A Paramecium reproduces by dividing itself into two daughter cells. This process is called _____.

Answer»

A Paramecium reproduces by dividing itself into two daughter cells. This process is called _____.



1993.

What is the composition of the cell membrane?How do molecules move in this selectively permeable membrane? [3 MARKS]

Answer»

What is the composition of the cell membrane?

How do molecules move in this selectively permeable membrane? [3 MARKS]



1994.

Question 23An increase in carbon dioxide content in the atmosphere would not cause(a) more heat to be retained by the environment(b) increase in photosynthesis in plants(c) global warming(d) abundance of desert plants

Answer»

Question 23

An increase in carbon dioxide content in the atmosphere would not cause




(a) more heat to be retained by the environment

(b) increase in photosynthesis in plants

(c) global warming

(d) abundance of desert plants



1995.

________________ is the ability of organisms to generate lost or damaged parts

Answer»

________________ is the ability of organisms to generate lost or damaged parts


1996.

Organelles that contain a green pigment are only found in plants and not in animals. What are the organelles and the green pigment called?

Answer» Organelles that contain a green pigment are only found in plants and not in animals. What are the organelles and the green pigment called?
1997.

One of the differences between onion cell and cheek cell is that their cell boundaries are different. The boundary of a cheek cell is ___ .

Answer»

One of the differences between onion cell and cheek cell is that their cell boundaries are different. The boundary of a cheek cell is ___ .

1998.

White Revolution is related to the increase in production of

Answer»

White Revolution is related to the increase in production of


1999.

How is division of labour done in the cells of living organisms

Answer»

How is division of labour done in the cells of living organisms

2000.

On the way home one day, Amit saw a man beating bundles of wheat. He was confused - why is the farmer beating around bundles of wheat? What is this process called? Explain the mechanism.

Answer»

On the way home one day, Amit saw a man beating bundles of wheat. He was confused - why is the farmer beating around bundles of wheat? What is this process called? Explain the mechanism.