What type of group are animals monophyletic?

clade
A monophyletic group is one which forms a clade: group of animals which comprises an ancestor and all of its descendants. For example, birds are monophyletic.

Why do some biologists not consider reptiles to be a monophyletic group?

Why do some biologists not consider reptiles to be a monophyletic group? A) Reptiles evolved independently at several different times in the past and from several different ancestral species. Birds are the direct descendants of some reptiles.

Do you think birds and insects have common ancestor Why or why not?

Analogous structures, on the other hand, can be represented by the wings of birds and of insects; the structures are used for flight in both types of organisms, but they have no common ancestral origin at the beginning of their evolutionary development.

Why are animals so diverse in form and function?

This diversity is due to adaptation of each species to a different niche. The niche of a species includes the area, function, and interrelationship of that species with other biotic and abiotic factors in its environment.

Are animals a monophyletic polyphyletic or paraphyletic group?

Animals are a clade, as are eukaryotes. As are A, B, and C, along with their common ancestor 2. In contrast, a group of taxa that lack a common ancestor, such as A, B, and D, is polyphyletic.

Are animals monophyletic or paraphyletic?

Examples of monophyletic groups include: Mammals, birds, angiosperms, and insects. Examples of paraphyletic groups may include: fish, gymnosperms, protists, and invertebrates.

Are reptiles more closely related to mammals or amphibians?

Reptiles are actually more closely related to birds and mammals than amphibians. The most obvious differences between amphibians and reptiles are the scales and claws of reptiles.

Which group of organisms should you include along with reptiles to make a monophyletic group?

Phylogenetic tree demonstrating that Reptilia is a monophyletic clade if birds are included in the grouping.

Are birds and insects closely related?

They are not closely related.

What animals have common ancestors?

Examples of marsupial mammals include kangaroos, wallabies, wombats, the koala, and the Tasmanian devil. These three extant mammal groups—monotremes, marsupials, and placentals—are monophyletic, meaning the members of each group descend from one common evolutionary ancestor.

Why are animals more diverse than plants?

The diversity of animals is much more than the diversity of plants because the animals are mobile and move from one place to another. Thus they moved to different habitats and achieved more diversity.

How diverse are animals?

The diverse appearance of animals is mostly superficial; the bewildering variety of known forms, some truly bizarre, can be assorted among a mere half-dozen basic body plans. These plans are established during the embryonic stages of development and limit the size and complexity of the animals.

Why do more closely related organisms have more genes in common?

More closely related organisms have more genes in common. The DNA > Protein > Trait (cause) connection is put in context as the phenomenon that underlies all of the other lines of evidence (effect) for common ancestry.

What are the ancestors of mammals?

Early mammals, like their reptile ancestors, were tetrapods and amniotes (Fig. 6.4). Tetrapods are vertebrate animals with four limbs as well as their evolutionary descendants.

How do fossils anatomy anatomy and DNA provide evidence of ancestry?

Fossils, anatomy, embryos, and DNA sequences provide corroborative lines of evidence about common ancestry, with more closely related organisms having more characteristics in common. DNA underlies the similarities and differences in fossils, anatomy, and embryos.

Can multiple lines of evidence help answer common ancestry questions?

With the Fish or Mammals? series, students have seen how multiple lines of evidence can help answer puzzling questions about common ancestry—and how multiple lines of evidence generally point to the same conclusion.