(a) What are saprobionts? Give examples.
(b) Write adaptations of submerged and rooted hydrophytes.

OR

(a) How do protocooperation and mutualism resemble and differ?
(b) Define acclimatization and mimicry.

(a) Saprobionts are the organism that feed on the dead organic matter in the soil and make available for the plant use. Examples are soil bacteria and fungi.

(b) Submerged and rooted hydrophytes have dissected leaves to cut water current and stems are soft with large internode to avoid the water resistance.

OR

(a) Mutualism is an obligatory interaction where both partners are metabolically dependent on each other whereas protocooperation is a non-obligatory type of interaction where both partner are not metabolically dependent on each other.

Both the interactions are positive type of interaction.

(b) Acclimatization is a process where organisms adjust to changing environments and maintain their fitness to the range of changing environmental conditions.
Mimicry is the phenomenon in which an organism resembles another organisms or object to hide from the predator or prey.