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Biology

Biology
Chemical Co- ordination in the body is brought out by

Blood
Lymph
Hormones
Enzymes

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Biology
Systolic and diastolic pressure in a healthy man is

85 mm and 55 mm
90 mm and 60 mm
201 mm and 110 mm
120 mm and 80 mm

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Biology
In mammals, an important role of excretion is played by________

Lungs
Kidneys
Large intestine
Liver

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Biology
Enzymes are important because they

Transfer genetic information
Contain water
Maintain cell shape
Speeds up chemical reactions

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Biology
Sickle-cell anaemia is due to

Bacteria
Genes
Hormones
Viruses

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Biology
A cell consists of three main components which of________

Protoplasm ,Nucleus,Plasma membrane
Protoplasm,Nucleoplasm,Cytoplasm
Nucleus,Ribosomes,Plasma membrane
Plasma membrane,Nucleus,Golgi bodies

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