Answer:
Red blood cells.
Explanation:
Our blood is made up of blood cells and plasma which is an aqueous fluid. Blood type is determined by the identifiers presence and absence which is present on the surface of red blood cells. These identifiers are known as antigens which helps in the immune system to identify its own red blood cell types.
There are 4 types of blood type:
A, B, O, and AB. These blood types are determined with the help of the antigen which is present on the surface of the blood cell and antibodies which is present in the plasma.
The answer is variation, because the same species can vary in color and sizes
Answer:
nothing attached i think?..
False because immigrants may have defined slang but they helped transform architecture
B.
Metastasis is the process by which cancer cells spread from their source to other regions of the body.
