| Why mammals of the colder region generally have shorter ears and limbs?I. To minimize their surface volume ratioII. To minimize heat lossIII. To maximize their surface volume ratioIV. To maximize heat lossChoose the correct combination from the given option |
| a) | I and II | b) | II and III |
| c) | III and IV | d) | I and IV |
| (a)Allens Rule According to Allens rule, in endothermal animals of colder areas, the extremities like feet, tail, ears, etc. tend to get smaller as compared to their relatives in warmer region due to minimise the surface volume ratio so that the heat loss could be minimize |