In comparative study of grassland, arid pond ecosystems __________.
Biotic components are almost similar
Abiotic components are almost similar
Primary and secondary consumers are similar
Biotic and abiotic components are different
The correct option is D Biotic and abiotic components are different All ecosystems have two types of components, the biotic components that are living and the abiotic ones that are non living. These components are different for different ecosystems. The living organisms in a particular ecosystem are different from others. For example the biotic components of a pond ecosystem are fresh water organisms while those in grasslands are small herbivores. Apart from this, their abiotic components are different. For example, soil is an important abiotic component of grasslands but not of pond.