1.) how are stem cells being used to improve the lives of people with skeletal differences?
a) they are being used to power bionic limbs.
b) they are being used to regenerate cartilage and other tissues.
c) they are being used to make precise holes for artificial hips.
d) they are being used to make high-tech materials for prostheses.
2.) how is bionics being used to improve the lives of people with skeletal differences?
a) bionics are being used to regenerate tissue.
b) bionics are being used mainly for cosmetics.
c) bionics are being used to make more lifelike limbs.
d) bionics are being used to create high-tech materials.

1. B

2. C

Explanation:

1. Stem cells have a higher potency than differentiated cells. They are pluripotent and multipotent cells that can differentiate into most types of cells. Therefore they can be used to repair injuries that take long to heal naturally. An example is applying stem cells on joints of people with arthritis to enable cartilage of knee caps regenerate.

2. Bionics is a form of engineering that mimics human physiology but is not made of tissues but rather mechanicals made of a material like titanium. An amputee, for example, will have a mechanical arm or leg on the amputated limb that functions like a real limb. Usually, in the best form of bionics, the subject is able to control the artificial limb with their mind.