Astudent is demonstrating how water moves across cell membrane to maintain homeostasis. the student uses dialysis bags, which are semipermeable and model cell membranes. the student fills each of the three bags with 100 ml of a 10% salt solution and ties the end of each bag. in beaker 1, the student places 200ml of a 5% salt solution. in beaker 3, the student places 200 ml of 20% salt solution.
what kind of environments are in beakers 1, 2, and 3?
a. beaker 1: hypertonic, beaker 2: hypotonic, beaker 3: isotonic
b. beaker 1: hypertonic, beaker 2: isotonic, beaker 3: hypotonic
c. beaker 1: isotonic, beaker 2: hypertonic, beaker 3: hypertonic
d. beaker 1: hypotonic, beaker 2: isotonic, beaker 3: hypertonic

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.