Every animal has evolved to fit a niche in the environment. This require different shapes, diets, colour, skills and defenses. This accounts for the variety of appearance.
Visible structures look so different on different organisms because each structure has their own function,so that means they can look different because they have different functions.
It is either homologous structures or homozygous structures. Embryological structures are when different species of animals look similar in the earliest stage of development and Analogous structures are when animals look different but their function is basically the same. So just look up homologous structures and homozygous structures in your Bio book!!
of course not. Animas are llike people, no to people are alike.
homologous structures
homologous structures- same structure/different functions in common ancestors analogous structures-same functions/differnt structures not in common ancestors vestigial-show evolutionary history/structures that arent used anymore (i.e. human appendix/human tailbone)
Related species have similar embryos.
It is either homologous structures or homozygous structures. Embryological structures are when different species of animals look similar in the earliest stage of development and Analogous structures are when animals look different but their function is basically the same. So just look up homologous structures and homozygous structures in your Bio book!!
Homologous structures
Homologous structures are the same body parts found in different species that look different and do different things that are also made of the same thing ex. the human forearm and the wing of a bird are composed of the same bones however have a completely different appearance and function.
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They are different because homologous structures have the same structure, but serve a different function. Like mammal arms(human, bat and whales). Analogous structues are different structures, but serve the same function. For example, bat wings and butterfly wings.
of course not. Animas are llike people, no to people are alike.
homologous structures
Why do scientists think related species have similar body structures and development patterns?
They can look alike but, they don't look exactly alike. No two of any species are exactly the same.
similar structures arising independently in different lineages, convergent evolution among different lineages, and adaptation by different lineages to the same selective pressures
homologous structures- same structure/different functions in common ancestors analogous structures-same functions/differnt structures not in common ancestors vestigial-show evolutionary history/structures that arent used anymore (i.e. human appendix/human tailbone)
Related species have similar embryos.