Why does the body attack a transplanted organ?
the organ has pathogens that the body wants to destroy.
the organ is not recognized by the body as being made of self cells.
the organ's ph level is not compatible with the recipient's ph level.
the organ does not have enough nutrients to support the body.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

Pls quickly! which of the following is true about the behavior of an organism? a. the behavior of an organism is influenced by both its heredity and it’s environment. b. the behavior of an organism is influenced only by the treats it inherits from its parents. c. the behavior of an organism is influenced only by the environment in which it lives in. d. the behavior of an organism is not influenced by either it’s heredity or its environment.