It’s to get all your different bones the right nutrients they need so they do get weak.
What visual you have evidence would he have to see on the microscope slides to support his claim: moving components
What would be the source of the bubbles? oxygen creation
Your answer is true
You can test that by saying thanks for my answer
Hope this helps!
~Courtney
Answer:
Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost. They have two unique properties that enable them to do this: They can divide over and over again to produce new cells. As they divide, they can change into the other types of cell that make up the body.
<u>I hope this is what you where looking for </u>
Vaccines and shots are typically made of a small controlled portion of the virus or disease to cause immunity to the large scale types.