How can the presence of bacteria in the environment be proven

through examples like decomposition, spoiling of food, diseases etc. we cant see any of them but they are all taking place as we can see them in our day to day life. i think this is it. tell me if i was able to help you. sorry if it was not helpful.

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.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation: