Group 7A, the Halogens contain metalloids such as Astatine.
In order for gas to leave a planet it needs to be hot enough and to overcome the planets gravity. The outer planets are colder and are very big compared to earth.
<span>Rana sylvatica.
Hope this helps!
-Payshence xoxo</span>
The correct answer is vacuole. Vacuole controls the water input and water output of an amoeba. It is found within endoplasm. The vacuole is an essential part of an amoeba because it maintains the life of an amoeba. Malfunction can cause the amoeba to burst.
Alexander Fleming is the answer ;D
