In lower organisms,the formation of thick-walled spores helps them to survive in unfavorable conditions. What is this process called?

Rhododendron is a characteristic plant of which region?

Which of the following are examples of short-term adaptation?
$(1)$ Accumulation of melanin in the skin
$(2)$ Utilization of stored fat by animals during hibernation
$(3)$ Seed dormancy
$(4)$ Phototropism of stems and geotropism of roots

The region consisting of long and severe winters and a growing season consisting of a few months of summers constitutes:

Many freshwater animals cannot live for long in sea water and vice-versa mainly because of the

The forests near the equator are known as .....