The child contains or is able to recieve both type a and b. the child obtained this from her parents.
Answer:
I'm not sure if this is right, but i believe the right answer would be fracture.
Explanation:
In geology, a fracture is any separation in a geologic formation, such as a joint or a fault that divides the rock into two or more pieces. A fracture will sometimes form a deep fissure or crevice in the rock. Fractures are commonly caused by stress exceeding the rock strength, causing the rock to lose cohesion along its weakest plane.
hope this helps :)
Lack of antibodies because thats the stuff to fight things away