• Ethology, or the study of animals in their natural habitats, sheds light on how animals interact with each other and their environments, and why they behave the way they do. By studying animal behavior, humans can also learn more about their own behavior—a field known as comparative psychology.
hope it helps po!
i believe in the concept that the universe is an infinite, mysterious and unkown place and has yet to be questioned about.
i believe in that because the universe is a very wide vacuum place that we have yet to know about. we haven't even traveled about probably even half of the universe. we also don't know about many other planets. we haven't reached that far out because of the time deifference in space and the oxygen in one's space ship won't be enough to travel to far reach planets. also it's still a mystery on being in another part of the universe by traveling through black holes or wormholes. there are also many unsolved theories and questions about it. there could even be other living things in the other parts of the universe. and on my guess the places and facts that we have dicovered are only 1 1/2 percent of 100% of the actual meaning and truth about the universe.
explanation: the xx/xy sex-determination system is the most familiar, as it is found in humans. in this system, most females have two of the same kind of sex chromosome (xx), while most males have two distinct sex chromosomes (xy).