They have hormone specific receptors which bind the hormone and initiate a cellular response.
Protein and peptide hormones, catecholamines like epinephrine, and eicosanoids such as prostaglandins find their receptors decorating the plasma membrane of target cells.
The correct answer is (B) they travel faster than S waves
As the interior of the earth is incompressible, the P-waves moves much faster and transmit their energy through the medium and travel very fast as compared to the S waves. In case of S waves, they are slow because the movement of medium is perpendicular to the direction of propagation of waves’ waves travel 60 times faster than S waves. The variation in speed of travel is because the earth reacts differently to both the waves.
Answer:
The nucleus is called the master of the cell because it controls all the functions inside the cell. It gives out directions to organelles through ribosomes. It controls regulation in the whole cell. It is basically the brain of the cell.