. Which of these is a response of cats to external stimuli? A hairs on the back stand up when scared
B decreased heart rate when sleeping
C movement of waste into the bladder
D temperature increases during an infection

A. hairs on the back stand up when scared

Explanation:

B and C are not responses to stimuli, and D is a response to internal stimuli

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

radon is correct hope this