Answer:
One company developing a treatment for Stargardt's disease is Astellas (formerly Ocata Therapeutics). This stem cell treatment is designed to protect and regenerate photoreceptors in the retina that are damaged by eye diseases like Stargardt's.
Answer:
D. Oxygen
Explanation:
Plants absorb carbon dioxide (CO2) and release oxygen for humans and animals to breathe in. Afterward, they'll release CO2 for plants to absorb, which forms a cycle.
The medium of the sound waves projected from a speaker is............................Air.
There are four major blood types determined by presence or absence of two antigens - A and B - on the surface of red blood cells, as well as antibodies A and B found in blood plasma.
Blood type A - red cells have A antigen and B antibody in plasma
Blood type B - red cells have antigen B and antibody A in plasma.
Blood type AB - red cells have both A and B antigens but no antibody in plasma.
Blood type O - red cells have no antigen but there are both antibody A and B in plasma.