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Question 2
A
the cylindrical cells are linked end to end 
B
its cells are linked together by cytoplasmic strands 
C
its cells are large 
D
it is an algae containing a large vacuole 
Explanation.
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Correct Option:
B
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Question 3
A
Lungs and spiracles 
B
Root hairs and mammalian hairs 
C
Feathers and scales 
D
Contractile vacuole and Kidneys 
Explanation.
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Correct Option:
B
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Question 4
A
pith , phloem, cambium, xylem, parenchyma, collenchyma and epidermis 
B
Xylem, phloem, cambium, cortex, endodermis, collenchyma and epidermis 
C
Pith,xylem, cmbium,phloem,, collenchyma, parenchyma and epidermis 
D
phloem, xylem, cambium, cortex, endodermis, collenchyma and epidermis 
Explanation.
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Correct Option:
C
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Question 7
A
stop growing 
B
grow rapidly 
C
continue to grow normally 
D
die completely 
Explanation.
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Correct Option:
B
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Question 8
A
more energy than aerobic respiration 
B
no energy 
C
an equal amont of energy to aerobic respiration 
D
less energy than aerobic respiration 
Explanation.
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Correct Option:
D
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Question 10
A
Oxygenated blood enters the left auricle from the pilmonary vein 
B
the walls of the ventricle are thicker than those of the auricle 
C
blood passes from of blood into the right ventricle to the left auricle through the aorta 
D
the tricuspid valve prevents the back flow of blood into the right auricle 
Explanation.
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Correct Option:
C
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