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Vertebrates is the name of a taxon, a clade in Biology. The most important defining characteristic of this group is that they all have vertebrae.
Within this group are many subgroups, which have slightly different characteristics, but all share the defining characteristics of the larger group (the vertebrates).
The group vertebrates itself is a subgroup of a larger group. Together with a couple of other groups, it is part of the group Chordata. The most important defining characteristic of this group is that the animals in it all have a central nerve chord along the length of their bodies. Vertebrates and all its sister-groups share this trait, and all the other traits of the larger group, but differ in others (eg. not all chordates have vertebrates).
It is this pattern of nested hierarchies, sets within sets within sets, each set sharing the defining characteristics of the superset, but differing in others, that made naturalists conclude that the diversity of life is the product of a process of continuous divergence: evolution. In this model, a superset (ancestral form) produces lineages (subsets) with diverging characteristics. Each of the diverging lineages keeps many of the characteristics of the ancestor, but becomes increasingly different from the ancestral form and its sibling lineages in other aspects. It is this pattern that tells us that all vertebrates have a common ancestor that was part of the clade of Chordata.
What else can I help you with?
Contains only closely related organisms?
A clade is a group that includes an organism and all its descendants that share a common ancestor. It represents a branch on the evolutionary tree of life.
What phylum is most closely related phylogenetically to first vertebrates?
The phylum Chordata is most closely related phylogenetically to the first vertebrates. Chordates share a number of characteristics with vertebrates, such as having a notochord, dorsal nerve cord, and pharyngeal slits. Cells within the notochord further develop into the vertebrae that define vertebrates.
What is the best evidence that organisms of two different species share a common ancestor?
The best evidence that organisms of two different species share a common ancestor is the presence of homologous structures. These structures have similar features due to shared ancestry, even if they serve different functions in different species. Additionally, similarities in DNA sequences and developmental patterns can indicate a common evolutionary history.
What level of classification do humans share with lizards?
Humans and lizards share the same level of classification as vertebrates, belonging to the Phylum Chordata.
Two species are classified in the same genus. How does this classification reflect the evolutionary relationship between the two species?
it means the species shared a common ancestor in the recent past
Do seals and humans share a common ancestor?
yes they do in facts share a common ancestor.
Do plants and animals share a common ancestor?
Yes, plants and animals share a common ancestor.
What does it mean when two species share a common ancestor?
An ancestor.
What common ancestor do two or more descendants share?
The common ancestor that two or more descendants share is a shared ancestor from whom they both or all descend.
How do finger structures provide support for evolution?
All vertebrates, from Ordovician fish onwards, have the same basic limb structure. This implies that they all share a common ancestor.
What does the presence of homologous structure in different organisms suggest?
The presence of homologous structures, such as the vertebral column in vertebrates, suggests the presence of a common ancestor. Learn more at 23andme.com.
Do humans and frogs share a common ancestor?
Not since the birth of vertebrates. Humans are mammals and frogs are amphibians. However, some research has shown that it is possible that some animals from different Orders have mated, so it is possible that we share a more recent ancestor. In response to demands that God made them and that's that, this is established biology. God may have made them, but that doesn't change the facts.
Do dragons and vampires share a common ancestor?
There has been no evidence of such an ancestor.
What is most likely similar to a common ancestor of all vertebrates?
jawless fish
Do mollusks and segmented worms share a common ancestor?
Yes these two share common ancestors.
Are fish monophyletic?
No, fish are not monophyletic. The term "fish" is a paraphyletic group because it includes some but not all descendants of a common ancestor. It does not include tetrapods (four-limbed vertebrates such as amphibians, reptiles, birds, and mammals) which share a more recent common ancestor with some fish species.
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.
