A person with blood type B gets severely injured and needs a blood transfusion. What blood type would a person need to be in order to donate their blood to the injured person?

B or O

Explanation:

The same type (B) or the universal donor (O) In transfusions individuals with type O blood are often called universal donors.

one would be wind another would be water density

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these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.