write the adaptive features of the following organism a)cactus b)polar bear
Answers
Explanation:
A cactus is able to survive in the desert due to the following features: (i) It has long roots that go deep inside the soil for absorbing water. (ii) Its leaves are in the form of spines to prevent water loss through transpiration. (iii) Its stem is covered with a thick waxy layer to retain water.
The polar bear
a white appearance - as camouflage from prey on the snow and ice. thick layers of fat and fur - for insulation against the cold. a small surface area to volume ratio - to minimise heat loss. a greasy coat that sheds water after swimming - to help reduce heat loss.
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Explanation:
THE ADAPTIVE FEATURES OF
CACTUS ARE
→IT HAS THICK STEM WHICH STORES WATER AND IT LATER WHEN THERE IS NO RAINFALL
→THE LEAVES ARE MODIFIED INTO THORNS WHICH REDUCES TRANSPIRATION
→IT HAS VERY LONG ROOTS UNDER THE SOIL WHICH HELPS TO FIND WATER DEEP UNDER THE SOIL
→IT HAS WAXY COATING TO PREVENT THE EVAPORATION OF WATER
POLAR BEAR
→IT HAS A THICK FUR WHICH KEEPS IT WARM
→IT HAS A THICK LAYER OF SKIN
→IT HAS A THICK LAYER OF FAT CALLED BLUBBER
→IT'S FURS ARE POROUS WHICH ALLOW LIGHT TO ENTER.