In fact the organisms are closely related because the DNA sequences are more similar. DNA sequences are more different as the organism differs.
Since all organisms have the same DNA, just different amounts and sequences, the more similar the sequences, the more closely related the organisms.
A group of similar organisms that can produce fertile offspring are species.
Functional similarity depends on the similarity percentage and the positioning of the conserved residuesin the sequences that are important for interaction. Usually the sequences showing 35% or more MAY tend to show functional similarity but again as i said it ALSO depends on the conserved residues in the sequences which may be located in the active site.
group two consist of similar creatures as they all have bilateral symmetry.
alligator and earthworm
dog and wolf
dog and wolf
Since all organisms have the same DNA, just different amounts and sequences, the more similar the sequences, the more closely related the organisms.
If organisms have similar genes, then they are closely related.
embryology
A group of similar organisms that can produce fertile offspring are species.
convergent evolution.
There is good evidence that they do. Proteins from the T. rex, the oldest sequences ever reported, were similar to chicken collagen, adding to the mountain of evidence that dinosaurs are most closely related to birds.
how are arithmetic and geometric sequences similar
The category that most similiar organisms belong to is genus.
alligator and earthworm
It implies that the organism shares a common ancestor.