If playing is one way humans learn how to behave, then what learns how to behave by playing? Answer choices: - athletes - humans - gases - bacteria - sharks - baseball - people - offspring
humans

If mutations help species grow stronger, then what helps species grow stronger? Answer choices: - weakness - layers of fat - a cuticle - exercise - pain - mutations - pleasure - roots
mutations

If arubber band snapping causes heat, then what does a rubber band snapping cause? Answer choices: - loss of heat - Injury - waves - cold - energy - sound - energy destruction - heat
heat

If most plants have anchors that go down into the soil to soak up water and minerals, then most plants have what that that go down into the soil to soak up water and minerals? Answer choices: - chemicals - alveoli - sodium - nails - feet - anchors - toes - an ion
anchors