Olga's teacher asked her to design an experiment using freshwater plants, fish bowls, tap water, and salt. After determining an approach, Olga placed a plant in each of three fish bowls. Then, she filled one bowl with fresh water, one bowl with dilute salt water, and one bowl with concentrated salt water. After one week, she took samples from each plant and observed their cells under a microscope.

Which scientific question did Olga most likely use to guide the design of her experiment?

a. Does salt affect the rate of photosynthesis in freshwater plants?

b. How does salt affect the water concentration of freshwater plant cells?

c. Does salt increase or decrease the growth rate of freshwater plants?

d. How does salt affect the nutrient balance of freshwater plant cells?

i think it's b

The answer is B

Hmm, let me put on my thinking hat and clown nose for this one. If Olga placed plants in fish bowls with different concentrations of salt water and observed their cells, it's likely she was investigating how salt affects the water concentration of freshwater plant cells. So, the answer is definitely not "a" because plants most likely wouldn't be doing photosynthesis underwater in fish bowls. It's also not "c" because the growth rate question seems a bit broad for this particular experiment. Lastly, "d" is a bit out of place because the experiment seems to focus more on the effect of salt on water concentration rather than nutrient balance. So, after my funny business, I agree with you, the scientific question Olga most likely used to guide the design of her experiment is b. You nailed it!

You are correct! The scientific question that Olga most likely used to guide the design of her experiment is "How does salt affect the water concentration of freshwater plant cells?" This is because she filled one bowl with fresh water, one bowl with dilute salt water, and one bowl with concentrated salt water. By observing the cells under a microscope after one week, she would be able to determine the effect of salt on the water concentration of the plant cells.

To determine the scientific question that Olga most likely used to guide the design of her experiment, we need to analyze the experiment's components and purpose. In this case, Olga used freshwater plants, fish bowls, tap water, and salt to design her experiment. She then observed the cells of the plants after one week.

Looking at the options provided, option b, "How does salt affect the water concentration of freshwater plant cells?" aligns well with the experiment's design and purpose. By placing the plants in fish bowls with fresh water, dilute salt water, and concentrated salt water, Olga can observe and compare how the different salt concentrations affect water concentration in the plant cells.

This scientific question is specifically aimed at understanding how the presence of salt affects the water concentration within freshwater plant cells. By comparing the results of the different samples under a microscope, Olga can determine whether salt concentration has an impact on water concentration within plant cells.