If powering a device with a battery requires a path for electrons to flow through a closed circuit, then powering a device with a battery requires a path for electrons to flow through? Answer choices: - electromagnetic energy - direct energy - rays or beams - hydrogen and oxygen - heat energy - a closed circuit - kinetic energy - an object
a closed circuit

If cells that secrete hormones travel throughout the body in blood, then cells that secrete hormones travel throughout the body in what? Answer choices: - skin - deltas - blood - atoms - waves - sleep - genes - breathe
blood

If some proteins bind to antigens to cause blood clots, then some proteins do what to antigens to cause blood clots? Answer choices: - edema - Toxins - H 2 O - bind - work - fusion - HIV - damage
bind

If weather over years influences plant growth, biodiversity, and adaptations of land organisms, then what influences plant growth, biodiversity, and adaptations of land organisms? Answer choices: - high temperature - global warming - weather on one day - weather over years - temperature - Temperature changing - weather in two minutes - weather in one hour
weather over years