Answer:
Fish need to be aerodynamic to move quickly. If they had legs they woulf be less aerodynamic and unable to get away from predators.
As you move across a period, the atomic radii decreases. ... As you move across a period, electrons are added to the same energy level while protons are also being added. The concentration of more protons creates a higher effective nuclear charge.
Fe: 2+
Br: 1-
Checked on the periodic table
Answer:
Most likely A
Explanation:
Its a more plausible answer
Answer:
They all are made up of cells
