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a) Natural Selection

b) Geographical Isolation

c) Gene Flow

d) Genetic Drift

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13y ago

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What is Geographical barriers?

Some artificial geographical barriers that exist include trenches dug around flat grounds to deter the movement of tanks and military transport vehicles. Others include walls, such as the great wall of China.


Why do LEDCs often suffer worse from conflicts?

Often it is the conflict that prevents these countries from developing their economies. Proper development can only occur in a relatively stable environment. Conflict puts off investors and causes migration (eg refugees) which does not enable economic growth and development to take place. Often conflict is over access to resources which means that the very thing that is needed for development is being fought over.


In the Midwest drought is most likely with a circulation pattern in the westerlies?

In the Midwest, drought is most likely to occur when there is a persistent high-pressure system in the westerlies that prevents moist air from moving into the region. This lack of moisture can lead to below-average precipitation levels and prolonged dry conditions, contributing to drought.


What were the advantages of terrace farming?

Terrace farming helped prevent soil erosion by reducing water runoff, allowed for agriculture on steep slopes, and conserved water by capturing and distributing it evenly across the terraces. It also increased agricultural productivity by creating more arable land in hilly or mountainous regions.


Why no D climates in the southern hemisphere?

D climates, which are characterized by mild winters, are not found in the southern hemisphere because there is less landmass in the southern hemisphere to create the necessary conditions for these climates to exist. The lack of significant landmass at high latitudes in the southern hemisphere prevents the formation of D climates.

Related Questions

Why do geographic isolation cause speciation?

It prevents the two populations from interbreeding. :) -Apex-


What prevents speciation?

iifdndf


What is the most common way that new species form?

The most common way new species form is through a process called allopatric speciation, where populations of a single species become geographically isolated from each other. This isolation prevents gene flow, allowing each population to evolve independently due to natural selection, genetic drift, and mutations. Over time, these evolutionary changes can accumulate to the point where the populations become distinct species. Other mechanisms, such as sympatric speciation, can also occur, but allopatric speciation is the most widely observed.


If a population becomes isolate from other populations of the same species and then genetic divergence occurs that prevents them from breeding with other populations what is it called?

This is called allopatric speciation, where a population becomes isolated and evolves separately, leading to genetic differences that result in reproductive isolation from other populations of the same species.


Why does geographic isolation cause speciation (Apex)?

it prevents gene flow between populations


What is the most important factor that holds a gene pool together and prevents speciation?

Gene flow, which refers to the movement of genes between populations, is the most important factor that holds a gene pool together and prevents speciation. Gene flow allows for genetic diversity to be maintained within a population, reducing the likelihood of genetic drift or natural selection causing populations to diverge into separate species.


What is the initial barrier to gene flow in allopatric speciation?

The initial barrier to gene flow in allopatric speciation is the physical separation of populations by a geographical barrier such as a mountain range, river, or ocean. This isolation prevents individuals from different populations from mating and exchanging genes, leading to genetic divergence and potentially the evolution of new species over time.


Why does geographic isolation cause specilation?

It prevents the two populations from interbreeding - APEX


A prevents actions from occurring?

inhibitor


When plants undergo allopatric speciation an initial reproductive barrier is often?

When plants undergo allopatric speciation, an initial reproductive barrier is often geographic isolation, which prevents different populations from interbreeding. This isolation can occur due to physical barriers such as mountains, rivers, or distance. Over time, genetic divergence can lead to the development of distinct species as populations adapt to their unique environments and evolve different traits. Eventually, these differences may become significant enough to prevent interbreeding even if the populations come back into contact.


How does predation cause stability ecosystem?

it prevents populations from getting to high


Which prevents speciation?

Gene Flow ~