B) a hollow ball of cells
Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom. The term isotope is formed from the Greek roots isos and topos, meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table.
It is not easily recognizable
Answer:
Zero latitude
Explanation:
The difference is high is hotter and low is colder
Carbon ^^ is the answer if I’m not mistakenn