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.

What are the probable phenotypes of their offspring

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.