Which of the following best describes the electromagnetic spectrum?

a. includes a small band of visible radiation
b. involves only high frequency waves
c. consists mostly of wavelengths of colored light
d. travels in a pattern of particle motion

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

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?