Give an example for:
$(a)$ An endothermic animal
$(b)$ An ectothermic animal
$(c)$ An organism of benthic zone
Why do high altitude areas have brighter sunlight and lower temperatures as compared to the plains ?
When young plants are grazed too heavily, they get killed because of
If a fresh water fish is placed in an aquarium containing sea water, will the fish be able to survive ? Explain giving reasons.
Match Column $I$ with Column $II$ and choose correct option
Column-$I$ | Column-$II$ |
$a.$ Aestivation | $(i)$ Over wintering |
$b$. Hibernation | $(ii)$ Over summer |
$c.$ Diapause | $(iii)$ Suspended development in zooplanktons |