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Byju's Answer
Standard VI
Biology
Structure of the Teeth
Animals of cl...
Question

Animals of class ciliata

A
Have two nuclei
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B
Are autotrophs
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C
Both A and B
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D
None of the above
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Solution

The correct option is A Have two nuclei
Animals of class ciliata have two nuclei - one diploid micronucleus and one polyploid macronucleus. Macronucleus performs normal cell functions and micronucleus takes part in sexual reproduction.

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Q. Match the animals listed in column I to blood listed in column II.
Column IColumn II
aManpPlasma and cells colourless
bEarthwormqPlasma colourless and nucleated RBC
cCockroachrPlasma colourless and enucleated RBC
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tPlasma and RBC have haemoglobin

Q. Match the animals listed below with their nature of blood. Choose the answer which gives the correct combination of alphabets of the two columns.
Animals Nature of blood
A. Man
(p) Plasma and cells are colourless
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C. Cockroach(r) Plasma is colourless and enucleated RBC
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Column I Column II
A.Man 1. Plasma and cells are colourless
B.Earthworm 2. Plasma is colourless and nucleated RBCs
C.Cockroach 3. Plasma is colourless and enculeated RBCs
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5. Plasma and RBCs have haemoglobin

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