Which of the following situations violates the law of conservation of energy? 1)A ball dropped from the top of a building increases in speed until it hits the ground.
2)A block sliding freely on level ice increases in speed until it hits a wall.
3)A child playing on a swing moves fastest at the bottom of the swing's path.
4)The height a ball bounces decreases with each bounce.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.