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SAI International School
Subject- Biology
Chapter- Why Do We Fall Ill
Subtopic- Principles of Treatment
Module-21
Home Assignment-II (Activity)
LAB ACTIVITY 1
Activity---13(NCERT)
Aim- To study the life cycle of mosquito.
Materials Required:
A chart/formalin preserved bottle jar specimen/permanent slides showing the different stages of
development in mosquito
How to proceed:
1. Observe the preserved specimen and name the stages.
2. Observe the chart carefully and note the different stages in the life cycle.
3. Discuss the characteristics of each stage
Observation:
Eggs : Deposited in water, they hatches in water.
Larva : Lives on the surface of water, moults several time.
Pupa : A stage just prior to the adult stage, pupae do not feed.
Adult : It emerges from pupae body parts harden and starts flying.
