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Which of the following scenarios best explains how resource partitioning can lead to adaptive radiation?(1 point)

Responses

The lack of competition leads to a more balanced ecosystem, resulting in more offspring.
The lack of competition leads to a more balanced ecosystem, resulting in more offspring.

The lack of competition between individuals leads to better survival and reproduction rates.
The lack of competition between individuals leads to better survival and reproduction rates.

There is no connection between adaptive radiation and the resource partitioning in nature.
There is no connection between adaptive radiation and the resource partitioning in nature.

The utilization of different resources requires different adaptations, selecting for different traits.

3 answers

The scenario that best explains how resource partitioning can lead to adaptive radiation is:

The utilization of different resources requires different adaptations, selecting for different traits.

This is because resource partitioning allows species to exploit different resources within the same environment, which can drive the evolution of distinct traits that enhance their ability to survive and reproduce in their specific niches. Over time, this can lead to the emergence of new species, a process known as adaptive radiation.

Identifying genes like HMGA2 is important, because it is evidence of natural selection. How does it demonstrate that natural selection occurred in Darwin’s finches?(1 point)
Responses

Scientists study similar genes that also impact the same traits to see how they work together and influence one another.
Scientists study similar genes that also impact the same traits to see how they work together and influence one another.

Scientists mutate and modify the gene in the lab to see how changes might occur to the organism.
Scientists mutate and modify the gene in the lab to see how changes might occur to the organism.

Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.
Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.

Scientists identify different forms of the gene in individuals from the same species and observe how it shows up as a trait.

The response that best explains how identifying genes like HMGA2 demonstrates that natural selection occurred in Darwin’s finches is:

Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.

This is because variations in the frequency of gene forms (alleles) in response to environmental pressures, such as food availability and habitat, can illustrate how natural selection favors certain traits that enhance survival and reproduction in specific contexts.