the amount of matters refers to the mass
a specialized cell, group of cells, or organ of endothelial origin that selectively removes materials from the blood, concentrates or alters them, and secretes them for further use in the body or for elimination from the body — compare endocrine gland, exocrine gland.
Answer:
Brainliest please
Explanation:
A confirmation test refers to a lab procedure conducted after an initial screen of a submitted sample (commonly urine, hair, blood, breath, or oral fluids) indicates positive results of drug metabolites in the system.
The correct answer is their blood lacks A or B antibodies.
People with type AB blood have A and B antigenes on the surface of red blood cells (RBCs). Antigen AB has no antibodies, thus, transfusion can be considered safe ( the serum of the recipient does not contain antibodies for the blood cell antigens of the donor).
D. More economically developed countries
