Amolecule that is foreign to an animal´s system and acts as a stimulus for white blood cells to destroy it is

question 3 options:

lymphocyte

antibody

antigen

b-cell

Which is a direct benefit of prohibiting nicotine and tabacco use in schools?

Effective teamwork and hyperactivity a good indications of positive

George’s daughter was born with a hole in her heart. he met up with a group of individuals of questionable character who agreed to deliver to george a healthy heart that could be a transplant for his daughter for a sum of $20,000. the group george negotiated with failed to deliver the heart. george tried to sue when he did not receive the heart but was surprised when the courts would not enforce the agreement.can george force performance of this contract? why or why not? (10 points)will he be able to recover the $20,000 that he gave for the heart? why or why not? (10 points)