Answer:
Natural selection
Explanation:
Natural selection from the given option best describes the process the pest population has experienced due to changes in the environment.
The precepts of evolution which causes changes within and between population of organisms is hinged on the natural selection.
Natural selection suggests that evolution is driven by favorable traits developed by organisms in order to adapt to the environment.
With changes in the environment, we can be sure that the pest population would have adapted through the means of natural selection. This way, organisms with desired traits and attributes prevails over others.
The main function of the respiratory system is to allow the exchange of gases between the atmosphere and the lungs.
Hence,the only structure that carries out this function is the alveoli as other structures such as the nose,trachea and pharynx transport gases to the alveoli just so that it can can out its function.
Answer:
Climate change could cause animals and plants to die.
Explanation:
They will become extinct and the level of oxygen in the atmosphere decreases and. carbon emissions increases
Answer:
Both are type of natural selection and ultimately lead to selection of a set of phenotype over the entire available genotype spectrum.
Explanation:
Both the stabilizing selection and directional selection are two forms of natural selection
Also in both the selection process, a new population with a better fitment to the prevailing environmental and physical conditions evolves.
In stabilizing selection, an average phenotype is selected over extreme variation. However, by this process of selection the genetic variance of the population will decrease.
However in directional selection, phenotypes at one end of the existing variation are selected over the entire spectrum
