Will mark

a bar magnet is dipolar. this means it has poles.

a. one
b. three
c. two
d. zero

Iknow the answer is a but i don't know why

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls

What substance has a mass of 9.5g and volume of 2.1cm^3