Answer:
The bottleneck effect, also known as a population bottleneck, is when a species goes through a "bottleneck" event that suddenly significantly reduces its population. ... The bottleneck effect is a type of genetic drift, which is defined as a random change in allele frequencies.
Answer:
En la sucesión primaria la roca recién formada o recién expuesta es colonizada por primera vez por seres vivos.
En la sucesión secundaria, un área anteriormente ocupada por seres vivos se ve alterada o afectada, y luego se vuelve a colonizar después de la perturbación.
Explanation:
C. They unwinds the two strand of DNA.
Respiratory system= breathing system
To keep our Respiratory system healthy we should:
1- never breathe in front of polluted areas
2- never pollute our areas
3- try to make our environment normal
Mutations are sudden spontaneous random changes that occur in the genetic make up of an organisms. A substitution mutation is a type of mutation that exchanges one base for another, for example a change in a single base such as switching an A to a G). Substitution could cause a change of codon to one that encodes a different amino acid and cause a small change in the protein produced. In the above sequence AAT-CCG-GTG in substitution of a single base
