Cold agglutinin disease. Cold agglutination - at body temperature, the antibodies do not attach to the red blood cells. At lower temperatures, however, the antibodies react to Ii antigens, bringing the red blood cells together, a process known as agglutination.
American Robin (Turdus migratorius). The robin red breast was designated as the state bird of Michigan by House Concurrent Resolution No. 30, the Senate concurring, on April 8, 1931.
The choice of the apple blossom as the Michigan state flower is fitting given the stateâs long ties to the fruit. Michigan ranks third in the country in apple production, just behind Washington and New York. The apple blossom was named the Michigan state flower in 1897. While Michiganâs orchards produce many varieties of apples, lawmakers singled out the flower of the pyrus coronaria, or crabapple, for the distinction of becoming the Michigan state flower.