Answer:
D
Explanation:
The gradient in bed load is mostly made up mostly of gravels and sands, broken down versions of larger boulders and rocks, which are most commonly found in mountainous areas. Streams with low gradients cannot carry bed load down stream because it moves slowly and without much force. Gravels and sands couldn't move downstream because the water flow isn't strong enough to move them or to keep them in motion.
The correct answer is:
C. All cells come from other cells
Explanation:
The generally believed parts of modern cell theory insert: All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and purpose in all living organisms.
When you are eating a celery stick, you are eating the vascular tissue of a plant.
Answer:
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
