All living organisms are made from cells, which are the systems of life. A cell comprises a plasma membrane layer containing a phospholipid bilayer. There are different sort of cells, from liver cells, which are several loads micrometers in size, to afferent neuron, which are several meters long. The smallest dimension visible through the nude eye is normally about 0.1 mm (100 µm) and via a light microscope is about 0.2 µm (200 nm); anything less than 1 µm could not be seen plainly without an electron microscope. Nevertheless, living microorganisms could not be observed using an electron microscopic lense.
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The phylum chordata is characterised by the presence ofCorrectIncorrect
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Haemoglobin is dissolved in the plasma ofCorrectIncorrect
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Which among the following are known for co-operation and division of labour ?CorrectIncorrect
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An ant can see the objects all around it due to the presence ofCorrectIncorrect
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Which of the following is a flightless bird ?CorrectIncorrect
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The sound producing organ in birds isCorrectIncorrect
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Summer sleep of animals is termed asCorrectIncorrect
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Which of the following is a cold blooded animal ?CorrectIncorrect
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The bats are able to fly in dark since their wings produceCorrectIncorrect
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Silk is produced byCorrectIncorrect