If thyroid hormones increase the rate of heat production in cells, then thyroid hormones increase the rate of what in cells? Answer choices: - kinetic energy - heat production - heat sources - Chemical energy - heat energy - heat improvement - energy usage - heat molecules
heat production

If nuclear reactions in stars cause stars to produce bright glares, then what in stars cause stars to produce bright glares? Answer choices: - energy of moving objects - nuclear reactions - direct energy - shining suns - bright activity - Chemical energy - moving moons - heat energy
nuclear reactions

If streams and creeks are better able to dissolve oxygen and nutrients than standing water, then what are better able to dissolve oxygen and nutrients than standing water? Answer choices: - stagnant lakes - sedimentary rocks - peachleaf willow - hydrocarbons - streams and creeks - stagnant ponds - ice cubes - Veins and arteries.
streams and creeks

If mammals conserve body heat with keratin, then what do mammals use to conserve body heat? Answer choices: - four limbs - Energy. - energy - sarcasm - skin - keratin - sawdust - groceries
keratin