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A human appendix and a skinks legs are examples of?
Vestigial structures, which are remnants of features that were functional in the ancestors of a particular species but are no longer functional in the current form.
Some snakes have vestigial legs Why is this considered evidence for evolution?
This is considered evidence for evolution because vestigial structures like legs in snakes suggest that they have evolved from ancestors that had functional legs. These structures are no longer needed for survival, but their presence supports the idea of common ancestry and evolutionary change over time.
Boa constrictors have tiny pelvic girdles and legs bones within their bodies that are nonfunctional what is that called?
The nonfunctional vestigial pelvic girdle and limb bones in boa constrictors are referred to as pelvic spurs or pelvic vestiges. These remnants are thought to be remnants of their evolutionary history when their ancestors had functional legs.
What is the term for structure that has no use in an organism?
Vestigial StructureA vestigial structure is a structure that appears to no longer have a use in the body.
What is the term for a structure that has no use in an organisms?
Vestigial StructureA vestigial structure is a structure that appears to no longer have a use in the body.
Whales have vestigial legs This suggests they?
That they evolved from land animals.
How are scientists able to explain vestigial structures found in whales and some snakes?
These vestigial structure, hip bones and leg bones, attest to the land dwelling ancestor of whales and the leg bearing ancestor of snakes. The inference is rather simple in whales. How else could a water swimming animal posses vestigial legs. For light amusement read some of the creationist non explanations for these vestigial markers. talkorigins.org
Why is a whales hind legs a vestigial organ?
Yes they do. They are detached from the vertebral column and float free though.
What is an example of transitional forms?
Whales, because their legs become vestigial for modern day whales. Their legs start to shrink slowly on the ancestors of fossils related to the whales, which slowly evolve to fins. Fish swim side to side, while the whales and dolphins move up and down. The nose slowly moves to the top of the head through the generations.
Why are vestigal structures considered critical evidence of evolution?
Many species have vestigial structures, especially in the animal kingdom. Two good examples are the vestigial legs in whales and some snakes. This is clear evidence that whales and snakes are descended from creatures that had functional legs. This is strong evidence of evolution, since there is no other plausible explanation, religious or scientific, for vestigial structures.
Modern whales have a vestigial perlvis and femur what does this evidence suggest about ancestors of modern whales?
Evidence of a vestigial pelvis and femur suggests about the ancestors of modern whales walked on land and thus, also breathed air. Many other marine life is believed to have been land based before massive climate change and perhaps floods.
How many legs does a anacnda have?
None, but they do have vestigial thighbones where their back legs used to be.
Does sperm whales have limbs?
They have the tail and their flippers. Some whales have vestigial(undeveloped) leg bones embedded in their tails.
Does a sand skink have legs?
Yes it has legs. They are vestigial (not fully formed) and practically useless.
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 are the mammals with 4 legs?
All mammals have four legs, or at least four limbs if they're bipedal such as us, or in the case of bats. Whales have vestigial hind legs, in the form of a pelvis hidden halfway down their tail, and the flippers are their front legs. In fact, all land vertebrates (amphibians, reptiles, mammals, birds) have four limbs. ^^
How many legs does a blue whale have?
The Blue Whale is a decedent of a land mammal. It evolved to live in the water yet vestigial leg bones still exist within the body of Blue Whales.
