Question

Why is bulk flow a necessary condition of complex multicellularity?

Answer 1

Answer:

Answer: A and B.

Explanation:

Bulk flow can be described or explained as the movement of molecules or fluids through organisms, i.e plants and animals due to pressure differences. It can also be explained as the combined movement of water and solute due to pressure gradients.

Examples of bulk flow include , the movement of phloem sap in plant, circulatory system in animals.

The importance of bulk flow is that, it makes the movement of molecules possible at the pressure gradient that is beyond that of diffusion.

Note that, bulk flow is also known as the mass transfer or mass flow.