the blood groups are (A ,B,AB,O)
THE blood group AB is called the universal receiver because any other blood group can be compatible with this blood group this is due to the absence of anti-bodies in this type
while blood group O is called the universal donor because it is compatible with all blood groups due to the absence of antigen (A and B)
while blood group A receives blood from itself and O and donates blood to itself and AB the same thing goes with blood group B

6 0

3 years ago

Explain how photosynthesis illustrates these general principles.

Annette [7]

Answer:

it is also transfer in chemical energy

4 0

2 years ago

What color does a test solution turn when protein is present

vodomira [7]

Answer: pink-purple

Explanation: Biuret solution is used to identify the presence of protein. Biuret reagent is a blue solution that, when it reacts with protein, will change color to pink-purple.

8 0

2 years ago