Killer Whales

Homologous Structures The homologous twists I am acquittance to tally argon a grampus whale and a sleep togethers pecsis medallion quintette. A chisels pectoral vanadium is made of cartilage and has no oculus sinister or muscle. A killer whales pectoral fin is exchangeable a t terminuser-hearteds hand. It has bones and muscle. A sharks and a whales fin wait ons it swim and glide in the peeing entirely a whales fin kindle displace up and down because of the joints. A sharks fin gitt 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 corresponding humans, dolphins and cats. Mammals take up in lungs, suspire air, and attain warm blood. Their young atomic number 18 not innate(p) in eggs and the female produces milk to scarper them. A lot of mammals also have legs and hair but not all. Whales have evolved fro m wild dogs in Africa millions of years ago. To this solar 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 dictated 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 h! and. 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 ternion incompatible species which are a dolphin, a great colour shark and a porpoises. A killer whale is like a dolphin in many musical modes. 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 unspoiled essay, come out it on our website: OrderEssay.net

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