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How isolation of member of a species work with mutations in speciation?
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Why does polyploidy produce new species?
a) Nondisjunction event during meiosisb) Nondisjunction event during mitosisc) Synapsis of homologous chromosomesd) Allopolyploid plants cannot become biologically fit new species; they are always sterile.
What is a member of a group that can interbreed?
it is known as a species.
What is meant by extinction?
An extinct animal is an animal that has no living member on Earth i.e. all of that species have died.
What is the called when two organisms can no longer successfully breed?
The phenomenon is called reproductive isolation. It occurs when two organisms of different species are unable to reproduce and produce fertile offspring due to genetic, behavioral, or physiological barriers between them.
When all the in individuals of a species have died what is it called?
The death of every member of a species is called extinction. When a large number of different species is dies out at the same time it is called mass extinction.
What is the differences between members of the same species called?
It varies based on the organism: breed, race, strain, member are all used.
How is sympatric speciation similar to allopatric speciations?
allopatric speciation happens when a physical barrier divides two populations of the same species and sympatric speciation happen when no physical barrier divides the member of a population, but methods such as polyploidy (chromosome doubling) do not let the members of the species have fertile offspring, 2 species are formed (the parental "normal" species and the divergent species "polyploids"). Remember that a species is defined as a population that when mated with one another produce fertile offspring. A polyploid and a parental organisms can not produce fertile offspring together so they become two different species and speciation is said to have occurred.
What causes geographic isolation?
Geographical isolation involves the separation of a group of organisms from the rest of the population, or a population from other populations by geographical means, be it by volcanic activity, a flood, a new river that cannot be crossed. The idea being that the population can only breed with itself and not with other populations, leading to genetic isolation. This is called the founder effect. The separated organisms can only mate amongst themselves, reducing their genetic diversity as they have a limited range of alleles. This can lead to speciation etc...
The evolution of reproductive isolation between two or more groups of organisms is?
The origin of new species. To be considered a member of a singe species, organisms must be capable of reproducing and producing viable offspring. Once they have evolved to become reproductively isolated, they can no longer fulfill these requirements and are considered separate species.
Why does polyploidy produce new species?
a) Nondisjunction event during meiosisb) Nondisjunction event during mitosisc) Synapsis of homologous chromosomesd) Allopolyploid plants cannot become biologically fit new species; they are always sterile.
What species are Grass adder and smooth?
They are the three native British species of snakes. The Grass Snake (Natrix natrix) is a member of the Natrix species. The Viper (Vipera berus) is a member of the Vipera species and the Smooth Snake (Coronella austriaca) is a member of the Colubrid species.
When no living member of species exist the species?
when there are no living members of a species the species is said to be "extinct".
How do populations vary as a result of their geography?
there are many geographical isolation which makes one population to not able to meet its species member on the other side like some of the animals which are not able to swim can not cross sea or river and get isolated from other members of same species and the by the long time they get very much different in physiological and behaviour that they start count in different species
What is canabalism?
it is when a a member of a species eats another animal of the same species
What is meant by the terms allograft?
Its a tissue or organ obtained from one member of a species and grafted to a genetically dissimilar member of the same species.
The US's traditional policy of isolation was abandoned when the US became a member of the?
neutrality acts of 1935 and 1937
Can there be more than one member of a species?
yes there can frogs are on species and there are different types of frogs in that species
