Answer:
O: Type O individuals can donate blood to anyone, because their blood has no antigens. However, they can only receive blood from other type O individuals (because blood with any antigens is seen as foreign).
B. Cell wall because animal cell has its non-fixed shape and plant cell has fixed shape.
Answer:
A
Explanation:
If one object attracts another object, it causes the second object to move towards it. Anything with strong gravity attracts other things to it.
