* Genes: Genes are the basic units of heredity. They contain instructions for building and maintaining an organism. Cats, like all living things, have genes that determine their traits, like fur color, eye color, size, and even personality.
* Species: A species refers to a group of organisms that can interbreed and produce fertile offspring. The domestic cat (Felis catus) is a distinct species. This means that cats can only reproduce with other cats and not with other animals like dogs or lions.
It's important to note that "speashis" is not a word. You might be thinking of "species," which is the correct term for a group of related organisms.
If you have more specific questions about genetics or the cat species, feel free to ask!