Answer:
The correct answer is option 2. are highly specific in their actions
Explanation:
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Receptor cells and antibodies are highly specific in their actions. Acntic bodies bind specifically to a protein. The recipient cells bind to a signaling molecule also specifically.
We conclude that the correct answer is option 2. are highly specific in their actions
The similarity between cell receptors and antibodies is that :
Cell receptors are present in human cells in the form of proteins which receive signals passed onto a cell while  antibodies help protect the human body against disease and also fight infections or diseases present in the human body as well.
Therefore both cell receptors and antibodies perform specialized function in the human body and can be said to be highly specific in their actions.
Hence we can conclude that The similarity between cell receptors and antibodies is that :They are highly specific in their actions.
Learn more about antibodies : https://brainly.com/question/7263907
