System failure is one of the more common causes.
It's called puberty. The moment in time where a children most likely go from kinda ugly to less ugly. LOL. You are all amazing. !!!!!!
Prokaryotes and eukaryotes differ in terms of size, presence of nucleus, presence of golgi apparatus and other features. Prokaryotes are way smaller than their counterparts, and do not have nuclei and golgi apparatus.
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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.