A cell that is specialized to receive and transmit is called a neuron
Answer:
I think it's more man-made possibly, but it might be both. You might want to see if someone says both, both I guess C maybe.
Most likely the students are using a crude measurement of time, like a stopwatch. They would get the best results with a scientific apparatus that uses a computer and optical sensors. Even recording their dropped objects with a video camera and analyzing the video would give more consistent results. Results will also vary greatly if different people are taking the time measures instead of one person making all measurements.
It’s B why do I have to write 20 characters
