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Free_Kalibri [48]
3 years ago
8

Changes in the gene pool can occur due to various mechanisms. From 1892 to 1954, millions of individuals emigrated (moved out) f

rom countries across the Atlantic Ocean to the United States. Many of these individuals entered through Ellis Island, a federal immigration station in New York. Which mechanism affected the gene pool of the immigrants that entered the United States through Ellis Island?
Biology
2 answers:
Sophie [7]3 years ago
8 0
The correct answer for this mechanism is gene flow: gene flow is the mechanism of a change in the gene composition in a population as a result of migration.

The migration from other countries into the Us was an example of a large-scale migration, so it resulted in a gene flow.
NNADVOKAT [17]3 years ago
4 0
The mechanism that affected the gene pool of the immigrants that entered the United states Through Ellis Island is Gene flow.

Gene flow involves the movement of genes or alleles between interbreeding populations of a particular species. In other words it is the movement of genes from one population to another population. Actually it may be an important aspect of evolution; evolution can occur as a result of genes being transferred from one population to another. Gene flow occurs when there is migration, since the loss or addition of people can easily change pool frequencies even without no other evolutionary mechanisms operating.  
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What limits the cells production of atp if oxygen is not present?
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Explanation:

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about the Trilobites is =Trilobites ( /ˈtraɪləˌbaɪt, ˈtrɪ-, -loʊ-/;[4][5] meaning "three lobes") are a group of extinct marine artiopodan arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period (521 million years ago), and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last extant trilobites finally disappeared in the mass extinction at the end of the Permian about 252 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 300 million years.[6] . and about the algae is =Algae (/ˈældʒi, ˈælɡi/; singular alga /ˈælɡə/) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to 50 metres (160 ft) in length. Most are aquatic and autotrophic and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem, which are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the Charophyta, a division of green algae which includes, for example, Spirogyra and stoneworts.

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