Answer:
Mutations in regulatory proteins during the cell cycle may cause affected cells to divide uncontrollably
Explanation:
1) they have similar chemical properties.
for example fluorine from the 17th column is a non metal so does all the elements of that group.
2)they have same valence electrons in their outermost shell
example
electronic configuration of
hydrogen 1, lithium 2,1, sodium 2,8,1 and so on.
3) have same valency.
20% is in the great lakes
Answer:
The sun and the earth?
Explanation:
I'm pretty sure that's right, since earth orbits the sun.
