Bias is having emotional input or a preconceived notion of something.
example: you are judging a contest and your best friend is in that contest. you would want your friend to win, therefore you have bias
I believe animals that possess homologous structures probably evolved from the same ancestor. Homologous structures are similar because of common ancestry. A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor.
Depends on what you have to watch stuff on, make sure you check reviews of movies to see how good they are. I’m currently watching attack on titan, but I really enjoy studio ghibli movies, they are on HBO Max and other places