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Biology

Biology
Prokaryotic cell differs from eukaryotic cell in lacking

Nuclear membrane
RNA
Cell organelles
DNA

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Biology
Which of the following organisms fix nitrogen in aquatic ecosystems

Cyanobacteria
Chemoautotrophs
Fungi
Phytoplankton

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Biology
Biological catalysis in living organisms are known as

Enzymes
Steroids
Vitamins
Hormones

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Biology
Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?

Mogar grass
Water hycinth
Elephant grass
Parthenium

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Biology
Muscular wall of the heart is externally covered by

Epithelium
Epicardium
Myocardium
Endothelium

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Biology
A cell consists of three main components which of________

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

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