Classify each of the following as an observation, a law, or a theory. (a) all matter is made of tiny, indestructible particles called atoms. (b) when iron rusts in a closed container, the mass of the container and its contents does not change. (c) in chemical reactions, matter is neither created nor destroyed. (d) when a match burns, heat is evolved.

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Ain is , is 's of ? 0.62 0.79 1.27 1.50

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?