Answer: Antigens
Explanation: The ABO system of blood grouping is based on the basis of the type of antigens that are present in the red blood cells. Erythrocytes is another name for the red blood cells. Antigens are molecules that are capable of eliciting immune response. There are two types of antigens: antigen A and B. Blood type A has only antigen A, blood type B has only antigen B, blood type AB has both antigen A and B while blood type O has no antigen (neither A nor B antigen).
Similarly, Rh trait is determined by the presence or absence of rhesus antigen in the erythrocytes. Rhesus antigen is an antigen first discovered in rhesus monkey. Rh+ indicates the presence of rhesus antigen in the red blood cells while Rh- indicates the absence of rhesus antigen in the red blood cells.
Green decade theory helps explain why coverage of ecology issues after the first earth day in 1970 sparked an increase in public concern about the environment.
The concept of green growth is concentrated to assume with economic growth and development can continue while combined with the negative impacts on the environment which include climate change are getting reduced while the natural environment continues to provide services concerned with ecosystem means to decouple.
The critical theory tradition contains the Green theory which makes sense that environmental issues arising out of questions about concerns among ourselves and others in the perspective of community and collective type of decision-making.
Green Growth results in the fostering of economic growth and development conditions while ensuring that the natural assets continue to provide the aspects of productive resources and environmental services where our well-being was settled up.
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Mouth, pharynx, esophagus
1,203,375 different species of animals on earth and 1,589,361 different species of plants on earth (so your answer is more)
