Unit 3 Review Quiz

What is homeostasis?

In an experiment, a scientist is studying the affects of sweating in varying situations. The scientist asked 10 participants to run in place for 2 minutes. At the end of 2 minutes, participants were given 1 minute to rest and then the amount of sweat the participant created was recorded. Body temperature was also recorded. Another set of 10 participants were also asked to run in place for 2 minutes, but at the end of 2 minutes, during the 1 minute of rest, a fan was blowing on the participant before sweat amounts were recorded. The time is an example of a(n) [blank_start]____[blank_end] variable in this experiment. The [blank_start]______[blank_end]_ variable was the amount of sweat and the _[blank_start]_____[blank_end] variable was whether or not a fan was blowing on the participant.

Which of the following carries oxygenated blood?

In both osmosis and diffusion, molecule move from areas of [blank_start]____[blank_end] to areas of [blank_start]____[blank_end] concentration.

If a cell that was originally 20% solute and 80% solvent were placed in a hypertonic solution. One would expect the cell to ....