Answer:
Well I think your able to identify by looking at the Physical and Chemical Properties or by its Melting or boiling point.
Hopefully this is correct
There are 6 elements that are the most important. The acronym, CHNOPS, is an easy way to remember these.
C - Carbon
H - Hydrogen
N - Nitrogen
O - Oxygen
P - Phosphorous
S - Sulfur
The answer is B because the humoral immune response is mediated by antibody
If two angles are supplementary to the same angles then they are congruent.