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4
Geotropism is reaction of plants to the stimulus of
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The muscles of the heart are
A. striated and involuntary
B. striated and voluntary
C. smooth and involuntary
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4
Best growth of plants is attained if they are supplied with
A. low carbohydrate and high nitrogen
B. high carbohydrate and low nitrogen
C. high carbohydrate and moderate nitrogen
D. equal carbohydrate and nitrogen
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4
The energy for the sperm to swim and reach the egg is provided by
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Maize is attacked by
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It Is not advisable to sleep under a tree at night because of release of
A. oxygen in a lesser quantity than the required levels
B. oxygen in large amounts
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Biocatalysts are
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Who first observed the plasma membrane?
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Which of the following terms is used in Botany?
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The specific gravity of blood is
D. many times that of water
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A child goes on vomiting profusely and develops symptoms of diarrhoea. Chances are that in the child's blood serum there is a drop In
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Which of the following diseases is considered as completely eradicated from India, as no case of the same has been reported in last one year?
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The hormone that contains iodine is
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The natural defence of our body against foreign germs is formed by
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Which one of the following is not caused by bacteria?
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Carbohydrates are mainly needed for
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Which of the following plays an important part in photosynthesis?
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Total number of amino acids in plants is
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Which one is called anti-haemorrhagic vitamin?
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The metallic part of haemoglobin is
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Kangaroo is one of the animals popularly called as
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What are top carnivores?
C. all carnivorous animals
D. carnivores that are not eaten by any other animal
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Origin of species was published by
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Insulin is produced in the human body by the
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The plant cells are surrounded rigidly by
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Which one of the following animals stores water in the intestine?
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Genes are made of
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Adaptation for flying is termed as
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The geotropism of the roots that makes them grow towards gravity is said to be
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Viruses have