If some touch receptors sense differences in the amount of heat, then what do some touch receptors sense differences in? Answer choices: - voltage - visible energy - fingers - refraction of light - gravity shifts - amount of heat - the skin - change in density
amount of heat

If barn swallows travel long distances, then an animal that travels long distances is? Answer choices: - brown bear - dangerous - Riding a bike - warm-blooded - a barn swallow - supersonic - ground squirrel - mountain gorilla
a barn swallow

If moose begin behavior intended to attract a mate in autumn, then when do moose begin behavior intended to attract a mate? Answer choices: - Winter - howling - The past - sweating - Summer - autumn - ligt - movement
autumn