Fill In The Blanks.

Question 11 Mark

In the animals of Aves class ______________ gland is found at the base of the tail.

Answer

oil

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Question 21 Mark

For respiration Cyclostomata have an elongated body bearing ______________ pairs of gill slits for respiration.

Answer

$6-15$

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Question 31 Mark

Presence of jointed appendages is a characteristic of ______________ .

Answer

Arthropoda

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Question 41 Mark

Earthworm has longitudinal and circular muscles which helps in ______________ .

Answer

locomotion

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Question 51 Mark

The skeleton of animals of phylum Porifera is made up of spicules or ______________ .

Answer

Spongin fibres

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Question 61 Mark

In incomplete digestive system has only a ______________ to the outside of the body.

Answer

single opening

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Question 71 Mark

Animals of phylum Echinodermata have an endoskeleton of ______________ ossicles.

Answer

calcareous

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Question 81 Mark

In males pelvic fins bear ______________ .

Answer

Clasper

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Question 91 Mark

Nephridia in animals of phylum Annelida helps in ______________ and excretion.

Answer

Osmoregulation

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Question 101 Mark

Polyp produces ______________ through asexual reproduction.

Answer

Medusa

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BIOLOGY Fill In The Blanks.

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