The autotrophic mode of nutrition requires

Plants have low energy needs as compared to animals. Explain.

Explain the process by which the energy requirements of autotrophic organisms are fulfilled. In which form are the unused carbohydrates stored?

Match Group $(A)$ with Group $(B)$:

Group $(A)$	Group $(B)$
$(a)$ Autotrophic nutrition	$(i)$ Leech
$(b)$ Heterotrophic nutrition	$(ii)$ Paramecium
$(c)$ Parasitic nutrition	$(iii)$ Deer
$(d)$ Digestion in food vacuoles	$(iv)$ Green plant

What are the differences between autotrophic nutrition and heterotrophic nutrition?

Which enzyme or substance is responsible for the conversion of milk into curd?