Question 5 Given below are some adaptive features of animals: (a) Layer of fat under the skin (b) Long, curved and sharp claws (c) Slippery body (d) Thick white fur Which of them are the adaptive features of a polar bear? (i) (a) only (ii) (a) and (b) only (iii) (a), (b), and (c) only (iv) (a), (b) and (d) only
why do animals such as: sheep,goat etc. have a thick coat of hair on their body?