Answer:
Island isolation promotes allopatric speciation.
Explanation:
Allopatric speciation is a form of speciation (creation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations reach a high level of genetic divergence. They can no longer interbreed which means they become two different species (speciation).
New populations evolve as result of mutation, genetic drift and natural selection.
For example, Galapagos finches are isolated from others by the ocean (geographic isolation). Because of the isolation, the finches don’t breed with one another. So, they developed unique characteristics and became endemic.
Answer:
Ecology is the study of interactions between organisms and their surround- ings including other organisms. Organisms grow, multiply, occupy different regions, compete with others for resources, prey upon others, transform into different species etc. Many interesting questions can be asked of this broad canvass.
Explanation:
Answer:
A quantitative trait is a measurable phenotype that depends on the cumulative actions of many genes and the environment.
Explanation:
These traits can vary among individuals, over a range, to produce a continuous distribution of phenotypes. Examples include height, weight and blood pressure.
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