Biological recognition is important in processes at the molecular, cellular, and organismal levels. Choose ONE of the following, explain how the process of recognition occurs, and discuss a specific example.
-Neurotransmitters are recognized in the synapse.
-Target cells respond to specific hormones.

Target cells respond to specific hormones is the right choice from given options.

Explanation:

Biological recognition is a process in which two biological molecules are interacted such that there is no chemical bonds formed between them.

Target cells responding to specific hormones is an example of specific hormones. Hormones are responsible for the creation of chemical messenger among the cells.

Target cell carries receptor for the specific hormones although hormones are circulating in the blood they get recognized by the cells having specific functional receptors.

When hormone binds a receptor, cascade of reaction starts that carries out the process at molecular, cellular and organism level. Hormone is recognized by cell membrane or intracellular protein on receptor.

When hormone binds to receptors on the cell surface or inside the cell it interacts to activate  particular  gene for protein to be coded like in growth or fast metabolism.

Gene activation get expressed in the cell's nucleus.

a physical change is being made.

c should be the answer