Specialized organs in excretion for complex multicellular organisms allow for efficient removal of nitrogenous materials and other metabolic wastes, contributing to the overall maintenance of internal homeostasis.

Unicellular organisms eliminate wastes by simple diffusion from the body surface into surrounding water. Complex multicellular organisms use specialized organs for excretion.

The biological process involved in removing harmful metabolic wastes is called excretion.

Translocation in phloem is achieved by utilizing energy, with substances like sucrose transferred using energy from ATP. This increases osmotic pressure, causing directional movement of materials in the phloem to tissues with lower pressure, allowing for material transport as per ...

The phloem transports amino acids and other substances, especially delivering them to storage organs of roots, fruits, seeds, and growing organs.