Which carries information by copying an original sound? analog signal
digital signal
volume
frequency

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?