Answer:
Founder effect
Explanation:
Genetic drift is the process of change in allele frequency in a population because of chance increase or decrease in number of particular alleles in that population. It can be caused due to may reasons like founder effect, bottleneck effect etc.
Founder effect is a phenomena where a small group of individuals migrate from the original population to some other area and start a new population. The new population will all result from this small founder population. So if by chance some alleles were present more in the founder population, the new population will also show high frequency for it. As a result the allele frequencies in the new population can differ from the original first population.
Here, the Amish population in North America was settled by a small number of immigrants from Europe. Among those immigrants many had alleles for genetic dwarfism. So when this small population grew in America, genetic dwarfism also became prevalent in them.
Answer: Away from the mid-ocean ridge :)
Answer and Explanation:
Darwin observed that members of a species in a population especially those that reproduce sexually show certain variations. Some of these variations are caused by genes hence can be inherited. Some of the inherited characteristics make the individuals possessing them better suited to the prevailing environmental conditions. This enables such individuals to stand a better chance to survive in the struggle for existence. Accumulation of this gradual changes in a populations due to natural selection leads to formation of new species that are better suited to the environment.
A mixture has to do with a combination of two or more substances that are not chemically combined together.
<h3>What is the separation process?</h3>
A mixture has to do with a combination of two or more substances that are not chemically combined together. The following are the answers to the questions.
1) refining
2) nylon
3) all of these.
4) monomer
5) vaporize, condense, and cool
6) plastic
7) solar energy
8) separated and collected.
9) silk
10) asphalt
11) Fractional distillation
12) Bitumen
13) refined
14) boiling points
15) amino acids
16) false
17) false
18) true
19) true
20) false
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