Probiotics are supplements that contain beneficial bacteria that aid in digestion. Some healthcare professionals have seen these bacteria-
filled supplements improve the digestive health of many of their patients.
Which of the following is the best explanation of how probiotics can
improve digestive health?
Select one:
A. Probiotics increase stomach acid that helps break down food

B. Probiotics can deactivate viruses that can cause food bor illness
C. Probiotics add beneficial bacteria to the gut that aid in nutrient absorption and
help limit the growth of harmful bacteria

D. Probiotics do more harm than good by increasing the reproduction of harmful
bacteria

How can you keep track of variables in a science experiment?

Explain the difference between incomplete dominance and codominance

Rease is an enzyme used by plants to break down urea (a nitrogen-containing compound) into carbon dioxide and ammonia. urease urea > > > carbon dioxide and ammonia ammonia is broken down by plants into a nitrogen source plants need to grow. thus, plants could not use urea as a nitrogen source unless it was first converted to ammonia. in soybean plants there are two different kinds of urease, one produced in the seeds and the other produced in the leaves of the plant. three types of soybean plants were used in a set of experiments: normal soybeans and two mutant strains, one lacking the urease in the seeds only (strain 1) and one lacking urease in the leaves only (strain 2). experiment 1 separate areas in a field were planted with normal, strain 1, and strain 2 soybeans. all types of soybeans appeared to grow, flower, and produce seeds equally well. there were no externally detectable differences among the strains. experiment 2 small pieces of plant leaves of equal weight were obtained from each type of soybean plant and separately placed on media in culture dishes. tissue growing in this way will become an unorganized clump of cells referred to as callus. to provide a controlled nitrogen source, half the tissue samples of each type were placed on media containing urea, and the other half of the samples were placed on media containing ammonia. after 30 days, the weight gain for each of the callus samples was determined. results are shown in the table below.