powerpoint presentation - raji (sabarigiri)

SABARIGIRI COLLEGE OF EDUCATION(AFFILIATED TO THE UNIVERSITY OF KERALA&RECOG.BY

NCTE)ANCHAL,KOLLAM ,KERALA

B.Ed course 2013-2014

PRESENTED BY,

RAJI SNATURAL SCIENCE 13379013SABARIGIRI COLLEGE OF EDUCATION,Anchal

WELCOME

ADAPTATIOADAPTATIONSNS

Animals also depend on their physical features to help them obtain food, keep safe, build homes, withstand weather, and attract mates. These physical features are called physical adaptations.

Adaptations develop over many generations.

The shape of a bird's beak, the number of fingers, colour of the fur, the thickness of the fur, the shape of the nose or ears are all examples of physical adaptations which help different animals to survive.

Plants also have adaptations for survival.

CactusPhotosynthesis without leaves…can absorb and store lots of water… tough skin that won’t dry out…spikes to repel grazing animals

CamelCan drink and store huge amounts of water. Eyelashes, long legs keep body away from hot sand. big feet to stop it sinking into sand. Excretes hardly any water

BATThey have petagium –Act as wings

CHAMALEON

They can change it’s colour according to it’s environment.

STICK &LEAF INSECT

They can mimic their environment and they look like leaf and dry stick

Polar BearThick white fur for camouflage and warmth… fur made of hollow hairs…blubber under skin…like all bears, store body fat.. stiff hairs on soles of paws for grip

Humming Bird

Smallest bird can beat wings 80 times a second to hover in mid air… long beak for drinking nectar from flowers…fastest metabolism of any animal, heart beats 1200 times a minute

SEXUAL SELECTIONSome adaptations, usually in males, make the male more likely to attract a mate in competition with other males of the same species.

Humans.

We have a massive brain capable of thinking, imagination and problem solving.We are the only animals that can make very complex language.We have opposable thumps that can make stuffs, more than any animal can.