Match the columns:
Column - $I$ | Column - $II$ |
$(a)$ Saprotrophs | $(i)$ He makes his food |
$(b)$ Omnivores | $(ii)$ Dependent on dead |
$(c)$ Autotrophs | $(iii)$ Eat other animals for food |
$(d)$ Vegetarian | $(iv)$ Fertilizers for plants |
Match the following:
Trophic levels | Examples |
$(A)$ First | $(a)$ Mon |
$(B)$ Second | $(b)$ Wolf |
$(C)$ Third | $(c)$ Cow |
$(D)$ Fourth | $(d)$ Phytoplankton |
Which of the following food chain shows spindle shaped pyramid of number?
What will happen to an ecosystem if :
$(a)$ All producers are removed;
$(b)$ All organisms of herbivore level are eliminated; and
$(c)$ All top carnivore population is removed
The bacteria which attack dead animals are
Major conduit of energy in land and aquatic ecosystem is transferred through ______ and ______ respectively.