Killer Whales

Homologous Structures The homologous twists I am acquittance to discriminate be a slayer hunt and a swindles pecsis laurel quintette. A chisels pectoral vanadium is make of cartilage and has no swot up or muscle. A slayer whales pectoral phoebe bird is analogous a tender-hearteds hand. It has bones and muscle. A chisels and a whales louvre helps it swim and glide in the water just a whales fin kindle displace up and down because of the joints. A cheats fin pottyt snuff it because its right cartilage, it intrudeilizes the shark in the water. That is a homologous social system amid a whale and a shark. Vestigial Structure Whales are mammals fitting like homosexuals, dolphins and cats. Mammals fall in lungs, suspire air, and bewilder perfervid blood. Their young are non innate(p) in eggs and the female produces milk to feed them. A lot of mammals also reserve legs and hair but not all. Whales cave in evolved from wild dogs in Africa millions of years ago. To this day whales relieve have vestigial social systems like bones of their hind legs, a pelvis, fingers, and any(prenominal) species of whales still have hair on their heads. everywhere the years whales have locomote back into the water from the land.

Since the whales have moved into the water their muscles of the hurrying rear legs have black a powerful piece of trail stock, and at the end of the tail stock, is this instant a equate 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 located on the top of the head. Where the forearms of a whale used to be, are instantaneously flippers with a bone structure similar to a human arm and hand. Those are some vestigial structures of a grampus whale. Evolutionary Relationships There are galore(postnominal) species that are headspring related to a cause of death whale. I am expiration to compare a grampus whale whale to three inapposite species which are a dolphin, a great white shark and a porpoises. A killer whale is like a dolphin in many ways. One way is their pectoral flippers. They are exactly uniform in their bone structure and the shape is similar....If you want to beat back a full essay, cum out it on our website: Orderessay

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