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NCERT based zoology practical/Lab questions and answers

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In this document you can find very simple notes which are easy to study. this notes are fully based on the latest NCERT biology textbooks.

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HIGHER SECONDARY
PRACTICAL EXAMINATION-2021
ZOOLOGY


Time:1 Hrs Total score: 20

,HIGHER SECONDARY PRACTICAL EXAMINATION -2021




Possible Question.1
Invertebrates




ZOOLOGY

, HIGHER SECONDARY PRACTICAL EXAMINATION -2021


Invertebrates 
Any 5 from below

Hydra,

Identify the given invertebrate animal. 
Liverfluke,

Write one identifying character/one 
Ascaris,
economic importance/ one 
Leech,
adaptation. 
Earthworm,

 Score 1

Silkworm,

Identification – 1⁄2 score

Honeybee,

One Value Point -1⁄2 score

Pila,

Starfish

ZOOLOGY

, HIGHER SECONDARY PRACTICAL EXAMINATION -2021

HYDRA

Identifying character

The body is elongated, tubular and radially symmetrical.

Mouth is surrounded by 6-10 tentacles.

Anterior end with a conical projection called hypostome.

Base of the body is flat and has basal disc.


Adaptation


Tentacles are armed with defensive of stinging cells.

Hydra is capable of movements in response to light, chemicals
and to food


ZOOLOGY
Connected book
image
Dr. Dileep Gangwar BIOLOGY Simplified NCERT Class XII
Publisher: 2018 ISBN: 9789313160984 Edition: Unknown

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