Hybrid meaning one dominant trait and one recessive trait makes the outcome of breading create a 3/4 chance for the offspring to be tall because of the punnet square.
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. In other words, it's when very different animals have bones that appear very similar in form or function and seem to be related.
The male structure, called the testes