0
What does natural selection predict about mimicry camoflauge homologous structures and vestigial structures?
Wiki User
∙ 11y ago
a
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
What Organs that are so reduced in size that they are just vestiges of homologous organs in other species are called?
Vestigial Organs
why are structures not removed by natural selection?
Vestigial structures do not harm the organism. Nature selects against only harmful traits.
Does homologous mean that structures are similar due to having common ancestry?
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)
Why do vestigial structures still exist in spite of natural selection?
Vestigial structures are the expressed genetic remnants indicatory of a species evolutionary past. In humans one such vestigial remnant is the coccyx, which were once part of tail structures in our primate ancestors.
How are vestigial structures not removed by natural selection?
Yes, because vestigial structures can be harmful. For example, some humans are now born without an appendix which ensures they will not be killed via appendicitis. Having a smaller expression of a vestigial structure, like having a smaller appendix, saves on the energy wasted in maintaining an unneeded structure.
What is the difference between homologous analogous and vestigial structures?
pickles :3
What Organs that are so reduced in size that they are just vestiges of homologous organs in other species are called?
Vestigial Organs
What causes the difference between the ancestor and modern koalas?
a. the presence of homologous structures b. the presence of vestigial organs
What is the term for structure that has no use in an organism?
Vestigial StructureA vestigial structure is a structure that appears to no longer have a use in the body.
why are structures not removed by natural selection?
Vestigial structures do not harm the organism. Nature selects against only harmful traits.
Does homologous mean that structures are similar due to having common ancestry?
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)
What do homologous structers vestigial structures and fossils provide evidence of what?
which model of evolution shows change over a relatively short period fo time
What is the difference between a homologous structure and a analogous structure?
Homologous structures are different forms of animal anatomy which have come from the some origin (a common ancestor), these can be extremely different in appearance and function. For example a bats wing, a seals flipper and a human arm all have common bone and muscle structures suggesting that they all derived from a common ancestor. Vestigial structures are parts of the anatomy which have lost their original function through the evolutionary process and no longer obtain a major functional role in that animals life. For example in human the appendix's original function was to break down cellulose in plant material, other vestigial functions in humans include the coccyx (tailbone) and ear muscles.
What are 4 pieces of evidence of evolution?
Part 1: Evidence from the Fossil Record Part 2: Evidence from Geographic Distribution of Living Species Part 3: Evidence from Homologous Structures and Vestigial Organs Part 4: Evidence from Embryology
What homologous structure that is greatly reduced to size?
Vestigial Organs
Homologous structure that is greatly reduced in size?
vestigial organs
What is the difference between vestigial homologous and analogous?
pickles :3
