How can we use our knowledge of an animal's structure and function to build a prosthesis to help an animal survive?
A living thing is anything that is alive or once was alive. To be a living thing you need to breath,grow,consume,reproduce and excrete.
A structure is in living things, the arrangement of parts that form the organism.
A function is what something does or is intended to do.
Our orca is missing its fin. The function of its fin is it helps it balance and etc.
It affects the orca because if the orca is in a fight and it doesn't have its fin it can be more slower and weaker.