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Earthworm-Morphology
Chapter Name : Structural Organization In Animals
Sub Topic Code : 103_11_07_03_03
Topic Name : Earthworm-Morphology
Sub Topic Name : Circulatory System
Introduction

Pheretima exhibits a closed type of blood vascular system, consisting of blood vessels, capillaries and heart.

Pre-Requisites:

To understand the circulatory system of earthworm.

Activity:

Videos which show how circulatory system in earthworm functions.

Real Life Question:

How many hearts do earthworms have?

Key Words / FlashCards
Key Words Definitions (pref. in our own words)
Blood glands present on the 4th, 5th and 6th segments. They produce blood cells and hemoglobin which is dissolved in blood plasma.
Blood cells They are phagocycotic in nature.
Learning aids / Gadgets
Gadgets How it can be used
Practical examples around us
Examples Explainations
What you learn in Theory:

The different parts in circulatory system of earthworm.

What you learn in Practice:

How the different parts coordinate to perform the circulatory function.

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