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sexual reproduction and mutations provide variation among species
their offspring will inherit their favorable traits
the studyidland answer is (a large population that has existed for a long period of time) fatboi
Mutation
Variation.
Intraspecific variation
No
The combination of genes
Islands have an isolated gene pool.
No. They are asexual. Which means they separate in order to reproduce by meiosis creating no variation among the species
sexual reproduction and mutations provide variation among species
there is variation among the members.
The most diverse biome on Earth is the rainforest. The amazon biome is most diverse among all of the rainforests. New species continue to be found. Between 2010 and 2013 as many as 441 new species were found.
They have different genotype and phenotype i.e. they have genes in different manners in according to recessive or dominant which make variations in their characters
Anopheles mosquitoes are very diverse among the different species. There are different species in Africa, the Middle East and the Americas.
When environmental conditions change it is more likely that at least some members of a species will survive if there is variation among the members.
I haven't counted recently, but I can tell you there are at least 5,000 different species of frogs. They are among the most diverse groups of vertebrates.