<span>Definition of a hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom covalently bound to a highly electro negative atom such as nitrogen, oxygen, or fluorine experiences. Hope this helps </span>
Answer:
The relationship between them is mutualism because both organisms benefit.
Explanation:
The honey bee gains nectar from the plant while the flower is pollinated.
PLEASE MARK AS BRAINLIEST.
Answer:
it is a catecholamine that stimulates alpha1 adrenergic receptors and, slightly, beta1 adrenergic receptors, without beta2 effect. It is the vasoconstrictor drug par excellence.