What is adaptive radiation.When can adaptive radiation be referred to as convergent evolutions?
Answers
Adaptive radiation is divergence or change in phenotype according to habitat. When organism leaves original niche and enter another (multiple) niche of different environments it undergoes changes to suit the new environment this is adaptive radiation.
Convergent evolution is when different species of different lineage arrive in a niche and they change their body to suit common environment. The organs may have different origin but function same.
eg Wings in bird are originated from Mesoderm.
Wings in Insect are originated from Ectoderm.
Both help to fly.
One evolution is talking about single species other is talking about multiple species.
Answer:
No, human evolution cannot be called adaptive radiation. This is because adaptive radiation is an evolutionary process that produces new species from a single, rapidly diversifying lineage, which is not the case with human evolution. Human evolution is a gradual process that took place slowly in time. It represents an example of anagenesis.
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