Frog
Chapter Name : Structural Organization In Animals |
Sub Topic Code : 103_11_07_05_01 |
Topic Name : Frog |
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Sub Topic Name : Morphology |
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Introduction
Skin of a frog is smooth and slippery due to the presence of mucus. The skin is always maintained in a moist condition. The colour of dorsal side of body is generally olive green with dark irregular spots. On the ventral side the skin is uniformly pale yellow.
Pre-Requisites:
To understand the morphology of a frog.
Activity:
Videos which show the morphology of frog.
Real Life Question:
Are frogs able to camouflage?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Body | divisible into head and trunk. A neck and tail are absent. |
| nictitating memebrane | Eyes are bulged and covered by a nictitating membrane that protects them while in water. |
| Ear | On either side of eyes a membranous tympanum (ear) receives sound signals. |
| Limbs | hind limbs end in five digits and they are larger and muscular than fore limbs that end in four digits. Feet have webbed digits that help in swimming. |
| Difference between male and female frogs. | Males have copulatory pads and vocal sacs which are absent in females. |
Learning aids / Gadgets
| Gadgets | How it can be used |
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Real life uses :
Frogs are eaten as delicacies in some parts of the world.
Places to visit :
frogs are often found in wet damp places. near residential areas they can be found in pot holes.
Practical examples around us
| Examples | Explainations |
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What you learn in Theory:
The morphology of frog.
What you learn in Practice:
How frogs are useful to humans.