Which of the following statements is true regarding scientific hypotheses? a testable hypothesis is valuable, even if evidence shows that it is false. every hypothesis is valuable, whether or not it is testable. a testable hypothesis is valuable only if all evidence supports it. there are no valuable hypotheses.

A testable hypothesis is valuable, even if evidence shows that it is false

Explanation:

A hypothesis sets a base on which the experiment is conducted by determining the design and protocol for which the scientists will take in the experiment. A hypothesis, therefore, should be developed based on good research prior to beginning to conduct the experiment. Usually a good hypothesis is one of no change called a 'null hypothesis'. Based on an analysis of data from the experiment, a hypothesis could either be rejected or accepted. If the null hypothesis is rejected then the alternative - which is usually the flip side of the null hypothesis- is  adopted as true.

. ph changes the ability of them he enzyme to dissolve in water.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.