BIOLOGY | Study Mode

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Question 1
A
strengthening the stem
B
manufacturing food
C
conducting manufactured food
D
none of the above.
Explanation
Xylem contains several large thick-walled tubes called in which the soil solution is carried from the roots to the leaves (C).

Correct option: C
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Question 2
A
can see near objects clearly
B
can see far away objects clearly
C
cannot see any object clearly
D
are colour-blind
Explanation
Myopia is short-sightedness i.e. can only see near object clearly (A)

Correct option: A
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Question 3
A
respiration
B
locomotion
C
protection
D
excretion
Explanation
Cilia is common to protozoa like paramecium, it is used for movement (locomotion) (B).

Correct option: B
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Question 4
A
hydrostatic skeleton
B
exoskeleton
C
endoskeleton
D
cartilaginous skeleton
Explanation
Exoskeleton is common to arthropod like cockroach (B).

Correct option: B
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Question 5
A
oxygen
B
carbohydrate
C
energy
D
amino acids
Explanation
Protein is built from units of amino acid. Amino acid is the product of protein digestion (D).

Correct option: D
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Question 6
A
to receive excess water in the plant
B
to absorb water from the atmosphere
C
for gaseous exchange
D
to absorb light
Explanation
Lenticels is the organ for gaseous exchange in the stem of plant (C).

Correct option: C
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Question 7
A
presence of chioroplasts
B
possession of a cellulose cell wall
C
absence of large vacuoles
D
presence of large vacuoles
Explanation
The vacuole in animal cell is smaller when compared to that of plant cell (C).

Correct option: C
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Question 8
A
man
B
snail
C
mosquito larva
D
fish
Explanation
Snail is the secondary host of bilharzias (B)

Correct option: B
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Question 9
A
thyroid gland
B
pancreas
C
adrenal gland
D
spleen
Explanation
The adrenal glands near the kidneys produce neutral hormones, one of which is adrenalin. Adrenal glands are stimulated by the nervous system when an animal feel frightened or anxious (C).

Correct option: C
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Question 10
A
a community
B
a population
C
a species
D
an ecosystem
Explanation
The collection of population makes up a community. (A)

Correct option: A

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