Q: If the mass of a planet causes the weight of objects, then the mass of a planet causes the what? Answer choices: - harmful substances - global warming - weight of objects - It gets heated up - heat energy - to move people - kinetic energy - flow of electrons
A: weight of objects

Q: If dogs conserve body heat with their fur, then how do dogs conserve body heat? Answer choices: - their blood cells - fur and fat - their nails - layers of fat - Exfoliation - sweating - their fur - their hair
A: their fur

Q: If natural selection helps organisms survive, then what does natural selection do to organisms? Answer choices: - move to different locations - Damages them - protect them - Creates them - Softens them - competing for resources - Helps them survive - Destroy them
A: Helps them survive

Q: If playing is one way dogs learn how to behave, then playing is one way what learns how to behave? Answer choices: - bacteria - Man - roaches - koalas - dogs - humans - toads - bears
A: dogs