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Ahmed saied Wed 24 Nov 2010, 1:49 pm Living organisms that couldn't adapt to environmental changes they perished as what happens to Dinosaurs and Mammoth.
- The living organisms that could adapt with the environmental conditions succeeded in continuation of life.
Aquatic plant:
Ex: Elodea plant (weak roots, ribbon shape, leaves and sessile (neckless), elastic stem contain air chambers).
Desert plants:
Ex: Cactus, opuntia and calamagrostis.
" Well formed roots extended vertically or horizontally.
" Small sized leaves ribbon like and spiralled have less number of stomata.
" Short and strong stems to avoid strong wind.
Adaptation for hiding:
- Some animals can colour themselves with the dominant colors in the environment.
Ex: leaf- insect , stick insects , chameleon.
Camouflage:
Is the ability of some living organisms to be hidden from their enemies or to capture the preys in predator species.
- Camel is one of the most adapted animals to live in desert.
- Camel has plentiful number of lacrimal glands and long eye lashes that protect eye.
- Camel has small ear and covered with hair.
- Camel has fur differ in thickness.
- Camel has broad pad to ease moving in sand.
- Camel has froked upper lib and strong teeth.
- Camel stores fats in hump it can live for 3-4 months without eating any food.
- Temperature of camel's blood is not constant.
- Camel can drink 100 liters of water through 10 minutes it can live for a week without drinking.
- Camel can lose 250 % of its weight when food is not available.
- Camel is the desert ship
- The living organisms that could adapt with the environmental conditions succeeded in continuation of life.
Aquatic plant:
Ex: Elodea plant (weak roots, ribbon shape, leaves and sessile (neckless), elastic stem contain air chambers).
Desert plants:
Ex: Cactus, opuntia and calamagrostis.
" Well formed roots extended vertically or horizontally.
" Small sized leaves ribbon like and spiralled have less number of stomata.
" Short and strong stems to avoid strong wind.
Adaptation for hiding:
- Some animals can colour themselves with the dominant colors in the environment.
Ex: leaf- insect , stick insects , chameleon.
Camouflage:
Is the ability of some living organisms to be hidden from their enemies or to capture the preys in predator species.
- Camel is one of the most adapted animals to live in desert.
- Camel has plentiful number of lacrimal glands and long eye lashes that protect eye.
- Camel has small ear and covered with hair.
- Camel has fur differ in thickness.
- Camel has broad pad to ease moving in sand.
- Camel has froked upper lib and strong teeth.
- Camel stores fats in hump it can live for 3-4 months without eating any food.
- Temperature of camel's blood is not constant.
- Camel can drink 100 liters of water through 10 minutes it can live for a week without drinking.
- Camel can lose 250 % of its weight when food is not available.
- Camel is the desert ship
