Biology | Study Mode

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Question 1
A
a parasite 
B
an epiphyte 
C
a saprophyte 
D
a predator 
E
a hermaphrodite 
Explanation.
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Epiphytes, which differ from parasites in the sense that epiphytes grow on other plants for physical support and do not necessarily negatively affect the host. Hence, epiphytes show no apparent harm to the host plant.


Correct Option:
B
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Question 2
A
proteinsynthesis 
B
respiration 
C
photosynthesis 
D
transpiration 
E
translocation 
Explanation.
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The given equation is that of photosynthesis which is the use of sunlight and chlorophyll by green plants in order to yield their food. The equation yields sugar and oxygen.


Correct Option:
C
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Question 3
A
sunlight 
B
chlorophyll 
C
carbon dioxide 
D
atmosphere 
E
water 
Explanation.
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The oxygen given of by plants is from WATER which is split during photolysis(splitting of water by sunlight).


Correct Option:
E
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Question 4
A
strengthening the stem 
B
manufacturing food 
C
reducing loss of water 
D
conducting manufactured food 
E
storing unused sugar 
Explanation.
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. Xylem plays an essential 'supporting' role providing strength to tissues and organs, to maintain plant architecture and resistance to bending.


Correct Option:
A
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Question 5
A
can see near object clearly 
B
can see far away object clearly 
C
cannot see any object clearly 
D
are colour blind 
E
are able to see clearly in the dark 
Explanation.
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Myopia is another name given to short- sightedness. Affected persons see close objects clearly but far objects are blurry and would take correction to get from a distance fixed on their retina.


Correct Option:
A
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Question 6
A
respirating 
B
locomotion 
C
protection 
D
regulating food intake 
E
excretion 
Explanation.
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Cilia have important functions in the life of Paramecium, such as locomotion through the surrounding water and ingestion of food into the cytostome.


Correct Option:
B
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Question 7
A
has chloroplast 
B
has a gullet 
C
lives in a pond 
D
possesses a flagellum 
E
has pellicle 
Explanation.
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Most euglena have chloroplasts, which is a basic characteristics of plants.


Correct Option:
A
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Question 8
A
An amphibian 
B
a reptile 
C
a shark 
D
a mammal 
E
a seagull 
Explanation.
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We have aquatic mammals. These are mammals which depend on water either fully or partly. They have the qualities of mammals


Correct Option:
D
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Question 9
A
Hydrostatic skeleton 
B
Exoskeleton 
C
Endoskeleton 
D
Cartilaginous skeleton 
E
Bony skeleton 
Explanation.
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Like most other insects, cockroaches have an exoskeleton, meaning their skeleton is located on the outside of their bodies.


Correct Option:
B
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