<h3>To round to a significant figure:</h3>
- look at the first non-zero digit if rounding to one significant figure.
- look at the digit after the first non-zero digit if rounding to two significant figures.
- draw a vertical line after the place value digit that is required.
- look at the next digit.
Answer:
B
Explanation:
Proteins are made up of smaller building blocks called amino acid.
<span>The atomic mass is the number of protons plus the number of neutrons in an atom.</span>
Answer:
RER
Explanation:
The proteins and lipids, essential for building the cell membrane, are
manufactured by the rough endoplasmic reticulum
