Which of the following is a specialized cell that can recognize a hormone's chemical structure? nerve cell smooth cell striped cell target cell

Target cell

In cell signalling, the receptors on the surface of target cells are specific enough to differentiate between the molecules on the basis of slightest change in the chemical structure. The hormones act as ligands which bind to specific receptors on the target cell and causes change inside the cell, to start the cascade of reactions.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.