Ncert Exercises & Solutions

EXERCISES

1. How is diapause different from hibernation?

Diapause is a stage of suspended development to cope with unfavourable

conditions. Many species of Zooplankton and insects exhibit diapause to tide over

adverse climatic conditions during their development.

Hibernation or winter sleep is a resting stage where in animals escape winters

(cold) by hiding themselves in their shelters. They escape the winter season by

entering a state of inactivity by slowing their metabolism. The phenomenon of

hibernation is exhibited by bats, squirrels, and other rodents.