Do all adaptations result in a change in population? Explain

No, sometimes adaptations are insignificant or cause the mutated organism to die, so it does not have the chance to reproduce and spread the mutation to its offspring. Many adaptations are neutral. Unless the environment changes, adaptations will most likely not affect a population.

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.