0
What else can I help you with?
What Organs that are so reduced in size that they are just vestiges of homologous organs in other species are called?
Those organs are called vestigial organs. They are remnants of functional structures that were more developed in ancestral species but have decreased in size or usefulness in the current organism.
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 are vestigial structures not removed by natural section?
Vestigial structures are remnants of features that were once functional in an organism's ancestors but are no longer needed in the current environment. Natural selection does not actively remove these structures because they do not typically have a negative impact on an organism's fitness. Since they do not hinder survival or reproduction, they are not actively selected against.
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.
What is the difference between homologous analogous and vestigial structures?
pickles :3
What causes the difference between the ancestor and modern koalas?
a. the presence of homologous structures b. the presence of vestigial organs
What Organs that are so reduced in size that they are just vestiges of homologous organs in other species are called?
Those organs are called vestigial organs. They are remnants of functional structures that were more developed in ancestral species but have decreased in size or usefulness in the current organism.
why are structures not removed by natural selection?
Vestigial structures do not harm the organism. Nature selects against only harmful traits.
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 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.
What homologous structure that is greatly reduced to size?
Vestigial Organs
What is the difference between vestigial homologous and analogous?
pickles :3
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
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 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.
How do vestigial structures work?
They don't, vestigial structures are biological structures with no known function that evolved from structures in distant ancestors that used to have a function that is no longer needed.
