3. Compared to Polaris, the relative mass of Betelgeuse is
1 lower
2higher
3the same

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )

i got you i did it ya know what it is just needing to fill this in for a quick task!