Similarities between living species and extinct species can be used to determine their relationship with one another. Beyond physical characteristics, a comparison of DNA can help establish the relationship between animals.
It is false that similarities between living and extinct species cannot be used to determine their relationship. However, similarities are not always the result of relatedness; it's possible that the similarities arose from convergent evolution.
Some similarities are environmentally related. A whale and a fish have similarities in appearance because they live in the same environment. Yet, a whale is a close relative to a hippopotamus, which looks nothing like a fish.
When we get inside extinct creatures and can examine the bones and any other preserved organs, there similarities can be used to determine their relationship to living creatures.
Analogous structures; for example, bird wings and bee wings.
yes
No one really knows how Mammoths got extinct but Mr. Groom told us a volcano erupted and everything died. :( ME MAD! >:(
Existing species can be seen in the wild or in captivity. You can't say the same for extinct species. An extinct species has no living members.
Some similarities between the cro-magnon and the neanderthals are that they are Human-like creatures that lived in caves(not always), they hunted various animals, and both had human characteristics. The Neanderthals had broad shoulders, big jaws and brute strength. However, the Cro-Magnons were smarter and developed better weapons and hunting tactics(their appearance were very similar to ours). There is also a theory of how the Neanderthals strangely went extinct when the cro-magnons migrated towards them, a war most likely.
The are not fully extinct but nearly extinct.
they are not extinct, there are still a lot of them about
Sharks are still in existence, while dinosaurs became extinct long ago.
D. Visible similarities and differences
Mass extinction is when many animals go extinct within a short period of time caused by the same variables/factors leading to the mass extinction.
No one really knows how Mammoths got extinct but Mr. Groom told us a volcano erupted and everything died. :( ME MAD! >:(
dinosaurs arent extinct just like humans they evolved into birds and lizards
fossil record
There is no evidence that the Loch Ness monster even exists, so it would be impossible to determine how it did not become extinct.
The difference is an endangered animals only has about a couple thousand of its kind left. Threatened animals still has a fair amount left. And extinct animals are all gone.
It is hard to determine exactly how many animal species are extinct because some species become extinct before scientists even know they existed. As far as science can tell, there are over 900 extinct species.
Scientists can study common ancestry through artifacts like fossils, genetic similarities, and anatomical structures in species. Fossils provide evidence of extinct species, genetic similarities show shared ancestry between organisms, and anatomical structures reveal common traits inherited from a common ancestor.
Biology may use skeletal similarities in determining where extinct animals are placed in relation to surviving species and other extinct species. Chromosomal similarities, whether they are eukaryotes (animals, plants, fungi), or whether they are prokaryotes (bacteria, archaea) are commonly used to classify modern species. Species that are believed to have a similar ancestor are grouped into genuses.
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