Phenacetin can be made using either the Williamson ether synthesis or the amide synthesis. a. True
b. False

True

Explanation:

Phnacetin can be produced using Williamson-ether synthesis. In this, phenacetin is derived from acetaminophen and the reaction involve interaction of alkoxide or phenoxide with a methyl or primary alkyl halide

In amide synthesis mechanism, acetic anhydride and phenetidine (p-ethoxyaniline)  react to phenacetin through a  nucleophilic acyl substitution

Hence, the given statement is true

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.