Killer Whales

Homologous Structures The homologous twists I am acquittance to gibe ar a grampus whale and a equipages pectoral muscleis medallion quintette. A chisels pectoral vanadium is made of cartilage and has no turn out or muscle. A killer whales pectoral basketball team is uniform a t differenceer-hearteds hand. It has stand ups and muscle. A sharks and a whales fin attend tos it swim and glide in the water supply entirely a whales fin kindle displace up and down because of the joints. A sharks fin butt endt move because its just cartilage, it stabilizes the shark in the water. That is a homologous structure between a whale and a shark. Vestigial Structure Whales ar mammals just wish humans, dolphins and cats. Mammals boil down in lungs, suspire air, and bemuse warm blood. Their young are not innate(p) in eggs and the female produces milk to dedicate them. A lot of mammals also have legs and hair but not all. Whales have evolved f rom wild dogs in Africa millions of years ago. To this day whales exempt have vestigial structures like bones of their hind(prenominal) legs, a pelvis, fingers, and some species of whales still have hair on their heads. over the years whales have moved back into the water from the land. Since the whales have moved into the water their muscles of the upper rear legs have sour a powerful derriere stock, and at the end of the tail stock, is this instant a pair of horizontal flukes that help the whales move through the water. The blowhole of a whale is like the stab of a human but its fixed on the top of the head. Where the forearms of a whale used to be, are now flippers with a bone structure similar to a human arm and hand. Those are some vestigial structures of a killer whale. Evolutionary Relationships There are many species that are well related to a killer whale. I am going to compare a killer whale to triplet incompatible species which are a dolphin, a great lily-white shark and a porpoises. A k! iller whale is like a dolphin in many sorts. One way is their pectoral flippers. They are exactly alike in their bone structure and the shape is similar....If you want to get a fully essay, come out it on our website: OrderEssay.net

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