If sea urchins have radial symmetry, then what has radial symmetry? Answer choices: - sea urchins - A Greek letter - humans - Most plants - peachleaf willow - catfish - gastropod shells - ducks
sea urchins

If when a cooler object touches a warmer object it removes heat, then when a cooler object touches a warmer object it? Answer choices: - electrically - flow of electrons - heat energy - energizes molecules - breaks down particles - solid, liquid, gas - removes heat - enables magnetism
removes heat

If loud noises can be dangerous, then what can loud noises be? Answer choices: - a chime - kinetic - sound - supersonic - mechanical - Pollution - dangerous - threatened
dangerous

If microbial fuel cells convert chemical energy into a flow of electrons, then what do microbial fuel cells convert chemical energy into? Answer choices: - rays or beams - transportation technology - Deoxyribonucleicacid - flow of electrons - hydrogen and oxygen - deoxyribonucleic acid - an engine - heating liquids
flow of electrons