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.

Question

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

Answer 1

The answer is B