One reason that multiple approaches are often taken to answer a testable question is that scientists

a. have different educational backgrounds and experiences. b. want to determine the single best way to find an answer. c. often look for the quickest way to answer the question. d. get tired of using the same approach every single time.

The united states uses which source of energy to produce almost 40 percent of its electricity

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes

How are primary producers important to the alligator's energy supply