Atriple beam balance is used to find the mass of an object. the balance has three beams with number scales and sliders that can be moved, a platform that holds the object, and a pointer that tells when the object and sliders are balanced.

in order to use the balance, an object is placed on the platform. then, the sliders on the beams are moved to indicate the mass in hundreds, tens, and ones (and tenths) until
a.
the pointer is at the bottom and the object is at the top.
b.
the pointer and the mass are at zero.
c.
the pointer lines up with the zero mark.
d.
the pointer is at the top and the object is at the bottom.
me

c, The pointer lines up with the zero mark

Explanation:

if it lines up with the zero mark it means that you found an equal mass with the weights compared to the mass on the actual plate.

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.

creative diagnostics provides a protocol for total protein extraction based on ripa which is widely used.