His name in the show is kelso
The correct answer is C: the gravitational forces due to the sun and the moon cancel each other's effect.
<span>A. the current hypothesis of the evolutionary relationships between organisms.</span>
The invading bullfrogs ARE HARMFUL. This is because, they cause decline in the population of the native species.
Decline in the population of the native species will throw the ecosystem into a condition of imbalance which will eventually affect all the living organisms that are living in that ecosystem.
(x-3)² = (x-3)(x-3)
= x² - 3x - 3x + 9
= x² - 6x + 9
