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What are 3 examples of organisms that contain vestigial structures?
Humans: the appendix, wisdom teeth, and ear muscles are examples of vestigial structures. Whales: hip bones and hind limb remnants are vestigial structures in whales. Pythons: pelvic spurs, remnants of hind limbs, are vestigial structures in pythons.
What difference did scientists discover between today's whales and fossils of their ancestors and how does this show whales and animals with four legs probably descended from a common ancestor?
Scientists have discovered that whales' ancestors had vestigial hind limbs, now absent in modern whales. These vestiges are important evidence of a shared ancestry with four-legged land animals. The presence of these anatomical remnants suggests an evolutionary link between modern whales and four-legged animals from a common ancestor.
Whales snakes and dolphins all have vestigial bones that indicate they once had hind limbs Living whales snakes and dolphins do not have hind limbs This is an ex?
There is no answer for this question because it does not make any sense.
What major difference have scientists discovered between today's whales and fossils of whales ancient ancestors?
Bones of whale ancestors showed that whales had hip bones along with legs and hind feet.
What major difference have scientists discovered between today and whales and the fossils of whales ancient ancestors?
Bones of whale ancestors showed that whales had hip bones along with legs and hind feet.
What is the hind leg bones shown in the whale are examples of?
They are examples of vestigial structures: structures that appear to be useless but once most probably had a function
What major difference have scientists discovered between today's whales and the fossils of whale ancient ancestors?
Bones of whale ancestors showed that whales had hip bones along with legs and hind feet.
Did whales and snakes ever have legs and feet and walk on land?
Yes, in fact all animals that do not have hind legs today did have hind legs thousands- millions of years ago. It is believed that humans will someday no longer have hind legs, the way evolution is going scientists predict that snakes and whales and legless ducks will one day grow legs whereas, humans will not. Leaving us at the bottom of the food chain once again.
What is cetacen?
Cetaceans are large aquatic carnivorous mammals with fin-like forelimbs, and no hind limbs, like: whales, dolphins, porpoises, and narwhals!
Describe information the fossil record contains about life on Earth?
Fossils of prokaryotes have been found in rocks about 3.5 billion years of age and this data fits with the molecular and cellular evidence that prokaryotes are the oldest form of life! An example would be that whales long ago had hind leg bones, but as they evolved, whales began living without hind limbs.
Why is a whales hind legs a vestigial organ?
Yes they do. They are detached from the vertebral column and float free though.
Your brain is a structure what is this kind of structure?
The main structures of the brain are the cerebrum (the fore brain), the cerebellum (the hind brain), the brain stem.
