AnsweR:
Rough endoplasmic reticulum.
Explanation:
The endoplasmic reticulum is a member of the endomembrane system and is present as a continuation of the nuclear membrane. They are divided into the rough endoplasmic reticulum and smooth endoplasmic reticulum.
Rough endoplasmic reticulum has ribosomes on its surface and is responsible for the synthesis of secretory proteins. Smooth endoplasmic reticulum synthesize lipids.
Therefore cells that intensely biosynthesize secretory proteins like neurons, white blood cells have a greater amount of rough endoplasmic reticulum than another cell of the body.
The answer is the third one
Percolating water can both remove mineral materials as well deposit it. Percolating water removes the undesirable materials from the rocks that come in its contact. In this way it erodes the surface of the rock and deposits it on the upper layer of the soil, thus enriching the soil.
Similarly the desirable materials are removed from the surface and deposited and concentrated. These processes are referred as secondary enrichment.
