DDT is a synthetic compound commonly used as an insecticide. It was used to control mosquito species that commonly spread diseas
es like malaria. The data show the percent resistance for three species of mosquitoes over three decades. What explains the trend seen in the data?A) Genetic drift resulted in the random deaths of non-resistant insects, leaving only resistant mosquitoes to breed.B) Artificial selection favored genotypes that were bred by humans to maintain the desired traits in the mosquito populations.C) Gene flow between the three species increased the genetic diversity of the populations, resulting in more DDT-resistant species over time.D) Natural selection favored resistant members of the species, which survived and reproduced at a greater frequency than non-resistant mosquitoes.
When the sympathetic and parasympathetic systems are in balance, the tendency is to rest often and easily allowing for renewal and healing to the body. The balance between the two systems is a key step toward greater health and wellness!
These are macrophytes that grow entire in the freshwater and become fossilized by the calcification oozes, going back to the Paleozoic era about 250 million years ago.
And they are unicellular to multi-cellular organisms also found in moist terrestrial habitats.
