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.

Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

Differentiation of cells changes the nucleic information. true false