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Question 1
A
strengthening the stem  
B
manufacturing food  
C
conducting manufactured food  
D
none of the above. 
Explanation.
Share Answer 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

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.
Share Answer Myopia is short-sightedness i.e. can only see near object clearly (A)

Correct Option:
A

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

Correct Option:
B

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

Correct Option:
B

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

Correct Option:
D

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.
Share Answer Lenticels is the organ for gaseous exchange in the stem of plant (C).

Correct Option:
C

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

Correct Option:
C

Question 8
A
man  
B
snail  
C
mosquito larva  
D
fish 
Explanation.
Share Answer Snail is the secondary host of bilharzias (B)

Correct Option:
B

Question 9
A
thyroid gland  
B
pancreas  
C
adrenal gland  
D
spleen 
Explanation.
Share Answer 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

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

Correct Option:
A

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