Chief producer in an ecosystem is 

The ultimate source of energy is

Products of respiration are

Tiny pores present on the surface of leaves help the exchange of grass are

Which of the following is a correct statement about growth?

Plants produce gums and resins in the body through

Animals that eat plants as well as animal matter are called :

Cow gives birth to a calf. This type of reproduction is called,

Which of the following organism have a short life span?

Conversion of food in to energy takeplace by the process of