A. i just read about this in my history book for school.
Answer:
didn't understand can you elaborate it
Answer:
Red blood cell ( RBC)
Explanation:
The antigens expressed on the red blood cell determine an individual's blood group. The main two blood groups are called ABO.
Answer
D. Rent textbooks
Explanation
Textbook rental from Chegg allows students to rent books and save money on their college books. Here a student can rent a textbook required by the lecturers and alter return it for free when done. Chegg offers lower charges for renting books than purchasing the book from stores.