Youngest to oldest would be: 3, 4, 1, 5, 2. Since it's from the bottom, the ones furthest from the bottom would be the youngest at the top. The oldest fossils would be closest to the bottom.
A. The black moths were more fit for survival, so their phenotype frequency increased.
I just did a project over this in biology and kinda hated it lol but there's the answer, have a gr8 day m8
Answer:
Mutation, Gene flow/Migration/Immigration of gene and Recombination
Explanation:
For any species there are majorly three sources of genetic variations –
a) Mutation – This leads to change in the genetic code with in the DNA of an organism. Sometimes mutation does not produce any effect on the organism. Mutation can produce both positive and negative impact. Its effect is observed in long run as its rate is slow.
b) Recombination – When an organism undergoes sex, his/her genes recombine with the genes of mating partner. The rate of recombination is faster than the rate of mutation
c) Gene flow /Migration/Immigration of gene – In this gene travel from one set of population to the other. The frequency of gene in the mixed population lies between the original population gene frequency and the migrated or donor population gene frequency
The emergence of resistance is a result of EVOLUTION by natural selection. It is a major evolutionary force.
<h3>Evolution and natural selection </h3>
The term evolution refers to the biological process of descendence with modification.
Natural selection refers to the differential survival or reproduction of the organisms better adapted to a given environment.
In this case, the presence of the pesticide generates an evolutionary constraint, thereby selecting pesticide-resistant individuals in the population.
Learn more about evolution here:
brainly.com/question/4207376
