Catecholamines mediate their effects throughI. α-adrenoreceptors. II. β-adrenoreceptors. III. receptor tyrosine kinases. IV. monomeric G protein receptors

Answer is I and II

Explanation:

Catecholamines are hormones made by your adrenal organs, which are situated on your kidneys. Models incorporate dopamine; norepinephrine; and epinephrine (this used to be called adrenalin or adrenaline).  Our adrenal organs send catecholamines into our blood when you're genuinely or sincerely focused. They cause you to inhale quicker, raise your pulse, and send more blood to significant organs, similar to your cerebrum, heart, and kidneys.

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