Yes, it will effect the entire ecosystem because they if their population begins to decrease than the food population for other animals will begin to decrease henceforth their populations will decrease causing the food population for the killer whale to decrease which means the killer whale population will decrease because they won’t be able to get as much food.
The sled with a rough metal bottom would take more force to move over ice, because the rough surface would increase friction and the force needed.
The answer is c because they are not identical to parents but have some things in common ( resemble)
In a scientific it would be called a satellite, don't question it.<span />
The oxygen in the water molecule attracts the most electrons and in so doing attracts a slightly negative charge.