Question

A fishless lake is colonized by a single fish species, which over a few thousand years gives rise to a large number of new species, each of which possess morphological changes associated with unique feeding adaptations. What is the most likely explanation for this pattern of speciation and which force of evolution is primarily responsible divergence and niche partitioning?

Answer 1

ANSWER:

A fishless lake is colonized by a single fish species, which over a few thousand years gives rise to several species, each with a series of unique feeding adaptations illustrates an adaptive radiation.

The common pattern of speciation is adaptive radiation when a single lineage produces diverse descendant species in a short period of time and different populations evolve into different niches.

A niche is defined as the role of an organism in its community...

The four forces of evolution are:

-mutation
-gene flow
-genetic drift
- natural selection

Adaptive radiation is a type of divergent evolution in which a group of organisms diverges into new species. Here, un this example shows the force of natural selection ....