What is the similarities of homologous and analogous?

Similar traits can be either homologous or analogous. Homologous structures share a similar embryonic origin; analogous organs have a similar function. For example, the bones in the front flipper of a whale are homologous to the bones in the human arm.

What is similarity due to convergent evolution?

A similarity may reside at the phenotypic level, in which case the lineages share the overt trait, but the underlying DNA sequences are different. Convergent evolution occurs when species occupy similar ecological niches and adapt in similar ways in response to similar selective pressures.

Why are Homoplasious traits similar?

A homoplasious trait is a similarity among organisms that was not inherited from the common ancestor of those organisms. Homoplasies can evolve in three ways (though the lines between these categories are often blurry): Convergent evolution. This process produces analogies, as discussed above.

What are the similarities between divergent and convergent evolution?

Convergent and divergent evolution are two types of evolution that are occurring over time. Both types describe how organisms changed with time and how new species developed. Furthermore, both show the way how organisms responded to natural selection.

How do homologous and analogous structures as evidence of evolution differ from each other?

Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species’ relatedness.

Which two species are the most similar?

Human and chimp DNA is so similar because the two species are so closely related. Humans, chimps and bonobos descended from a single ancestor species that lived six or seven million years ago. As humans and chimps gradually evolved from a common ancestor, their DNA, passed from generation to generation, changed too.

What is homoplasy in evolution?

evolutionary biology. : correspondence or similarity in form or function between parts of different species or lineages that is not attributable to common ancestry but is the result especially of parallel or convergent evolution in similar environments or ecological niches — compare analogy, homology.

What is a homoplasy or Homoplasious trait?

Homoplasy, in biology and phylogenetics, is when a trait has been gained or lost independently in separate lineages over the course of evolution. This is different from homology, which is when the similarity of traits can be parsimoniously explained by common ancestry.

What are the differences and similarities between convergence and divergence?

Divergence generally means two things are moving apart while convergence implies that two forces are moving together. In the world of economics, finance, and trading, divergence and convergence are terms used to describe the directional relationship of two trends, prices, or indicators.

What is the difference between convergent evolution and parallel evolution?

Strictly speaking, convergent evolution occurs when descendants resemble each other more than their ancestors did with respect to some feature. Parallel evolution implies that two or more lineages have changed in similar ways, so that the evolved descendants are as similar to each other as their ancestors were.