Design an experiment to answer this question.

The digestive tract of newborn chicks is free of bacteria until, for example, they eat food that has been exposed to the feces of adult chickens. The ingested bacteria establishes a population in the digestive tract that is beneficial for the digestion of food. However, if Salmonella are present in the adult feces, this bacterium, which can be pathogenic for humans who ingest it, may become established in the digestive tracts of the chicks. To eliminate the possibility that Salmonella might become established, should farmers feed newborn chicks a mixture of harmless known bacteria from a lab culture, or a mixture of unknown fecal bacteria from healthy adult chickens? Design an experiment to answer this question.

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Design an Experiment The unicellular alga Chlamydomonas reinhardtii has two flagella assembled from tubulin proteins.

Design an Experiment The unicellular alga Chlamydomonas reinhardtii has two flagella assembled from tubulin proteins. If a researcher changes the pH from approximately neutral (their normal growing condition) to pH….

determine the source of raw materials for plant growth.

About 200 years ago, Jan Baptista van Helmont tried to determine the source of raw materials for plant growth. To do so, he planted a young tree weighing 5 pounds….

Devise an experimental plan to guide your research, including hypotheses about one or more ways the change may affect the species’ growth and/or life cycle.

A moss species that you study occurs in lush abundance in the moist, shaded forest floor in a grove of coast redwoods (Sequoia sempervirens) in Northern California. When one of….