The ability to move is an adaptation to avoid predators.
A species is a group of organisms capable of mating and producing
offspring. This is another way of saying that a species is
reproductively isolated.
hope i could help
A = ∫₀a ex dx
B = ∫₀b ex dx
B = 4A
4∫₀a ex dx = ∫₀b ex dx
4∫(ea -e⁰) = eb- e⁰
4ea - 4 = eb⁻¹
eb = 4ea - 3
b = In(4ea - 3)