Question

question 1. biology is the study of life and living organisms. experimentation is one method by which biologists pursue scientific explanations. how would a biologist know if the results of their experiments are valid? a they are repeatable. b they match their hypothesis. c they are not measurable or repeatable. d they cannot be used to design another experiment.

Explanation:

In scientific experiments, including those in biology, results are considered valid when they are repeatable. This means that other scientists should be able to conduct the same experiment under the same conditions and obtain similar results. Matching the hypothesis is not the sole determinant of validity as unexpected results can also be valid. Measurability is important but not the only factor for validity. And just because results are from an experiment doesn't mean they can't be used to design another experiment.

Answer:

A. They are repeatable.