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When unrelated organisms live in similar environments they can evolve similar structures by chance This is called evolution . a. random b. artificial c. convergent d.divergent?
Wiki User
∙ 13y ago
This is known as convergent evolution.
An easy way to remember this is that they are converging....
which I tend to link to becoming the same.
To me this automatically states that they were different organisms to begin with. :)
Wiki User
∙ 13y ago
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What may have occurred to prevent species that are of the same grade from also belonging to the same clade?
similar structures arising independently in different lineages, convergent evolution among different lineages, and adaptation by different lineages to the same selective pressures
How does the existence of homologous structures support the theory of evolution?
When comparing earlier and later developments, homologous structures become more refined through time. When comparing common ancestors, we can compare the derivations of a homologous structure between two successors and also between the ancestor and each successor. We thus see several relationships between this and that, from 'right now', 'a little before now' and 'way back then'. For example, we see two species whose legs are very similarly structured, and then we find an ancestor that also possessed such a leg, except it was simpler or shorter or in a different ratio between sections. We can draw conclusions that the later species developed both from this earlier one, and that this earlier one died out, after its successors (which eventually became the newer species) could survive more often because they had better structured legs.
Limestone structures made of the skeletal structures of living organisms are?
My sheit!
What is one set of structures found in the nucleus made of DNA plus some protein?
The structures in the nucleus that contain DNA are chromosomes. Chromosomes are rod-like structures that are composed of DNA and protein.
How are analogous and homologous structures different?
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.
Why are mechanistic and organic structures suited to different organizational environments?
Why are mechanistic and organic structures suited to different organizational environments?
What do the structures that result from convergent evolution indicate about organisms?
The structure that result from convergent evolution indicates that organisms have to be reclassified because when scientists compared nucleic acid from the cells of the animals and they found many diffrences in them.
What evolution has produced many of the analogous structures in organisms today?
They don't. Homologous structures provide evidence for evolution not analogous structures.
What are artificial structures?
The moon, is made of cheese.
what structures are created at each type of convergent boundaries?
Convergent boundaries are where two tectonic plates hit each other. This can cause earthquakes, but can also create mountains.
Artificial levees and dams are structures used to control .?
Flooding
Artificial levees and dams are structures used to control what?
Flooding
How could two species that evolved on separate continents have similarities?
It's called convergent evolution. Where two species that are separated by a barrier evolve similar structures or behaviors. This is because they most likely live in similar environments that cause them to adapt similar features to survive in that particular environment.
What is the difference between a mechanistic and an organic structure?
They are designed for stable environments while organic structures are better suited for changing and innovative environments.
How can animal structures help animals survive in their environments?
It can help animals by giving the food water and shelter and some structures are adaptation
What are analogous characteristics?
analogous character similarities that are the same, but found in different species, thought to have arisen from convergent evolution
What structures should an artificial heart have?
It needs to have the same structures as the physical heart: valves, chambers, activation potentials, etc, and be able to pump blood.
