Question

claude wants to know more about the eating habits of the betta fish that live in his aquarium. he sets up an investigation to learn about the variables that affect the eating habits of his fish. which of the following statements could be a valid hypothesis for his investigation? select two answers. the amount of food a betta fish eats affects the ph of the water. the food preference of a betta is dependent on how good the food tastes. betta fish consume less food at cooler temperatures. the betta fish consume more food when the ph of the water is slightly acidic.

Explanation:

Valid hypotheses test variables affecting eating habits, are testable, and link an independent variable to betta fish eating behavior.

1. The first option links eating habits to water pH (reverse of the focus, not a hypothesis about what affects eating habits).
2. The second option refers to "taste preference," which is not measurable/testable in this context.
3. The third option links water temperature (independent variable) to food consumption (eating habit), is testable.
4. The fourth option links water pH (independent variable) to food consumption (eating habit), is testable.

Answer:

C. Betta fish consume less food at cooler temperatures.
D. The betta fish consume more food when the pH of the water is slightly acidic.