The bird in the photo is resting on the bison to cross the river. It's also utilizing the bison as a safety place for any alligators or other predators. Look at that bird just chilling! Now the bison is totally unaffected. He isn't being hurt or gaining something from the bird. What type of symbiotic relationship does this exemplify

commensalism

Explanation:

Commensalism is a symbiotic relationship in which one species benefits from the interaction and the other species is neither harmed nor helped. So the bird is being helped and the bison is being neither harmed nor helped.

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advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.