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Why do scientists think worms and mollusks share a common ancestor?
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Do mollusks and segmented worms share a common ancestor?
Yes these two share common ancestors.
What is the evidence which shows that mollusks and annelids share a common ancestor?
Mollusks and segmented worms have a one-way digestive system, a separate mouth and anus, and their larvae are very similar. This is the best evidence that they have a common ancestor.
What evidence indicates that annelids and mollusks are closely related?
Gene based phylogenetic studies indicate that annelids and mollusks share a recent common ancestor
Which of the following is true about the supergroups and a common ancestor?
Scientists know that the supergroups do not share a single common ancestor but do not know where in time they branch off from each other:)
Do seals and humans share a common ancestor?
yes they do in facts share a common ancestor.
What similarities in development lead scientists to infer that opossums chickens salamanders and fish share a common ancestor?
something to do with embryology
What similarities in development lead scientists to infer turtles chickens and rats share a common ancestor?
They look similar at birth
What does it mean when two species share a common ancestor?
An ancestor.
Do dragons and vampires share a common ancestor?
There has been no evidence of such an ancestor.
What does a branch point in a cladogram represent?
The branch point in a cladogram represents a specific ancestor that is separated into two or more species. For example a leopard and a house cat share a common ancestor. A similar example is that a wolf shares a common ancestor with the leopard's and house cat's ancestor but the wolf's ancestor lived longer than the leopard's and house cat's ancestor. Scientists use something called cladistics to determine the one common ancestor that multiple species have in common.
What are some clues scientists use as evidencece for evolution?
DNA can be used to match two species and determine if they are related or share a common ancestor. In addition, the existence of DNA itself is proof for evolution on a large scale - virtually all organisms share the same nucleic acid as the genetic code, leading scientists to the conclusion that all species shared a common ancestor at one time.
Will your sister in laws family be any relation to you?
Only if you share a common ancestor. This is seldom the case. Technically, there is no relationship.
