This can select for resistant mosquitoes. After a couple of years, the population is entirely resistant to the insecticides you used. The insecticides may also kill off the beneficial insects (like pollinators e.g. bees) or the predator insects that ate the mosquitoes. Bioaccumulation and biomagnification in the food chain can lead to unintended deaths of high-level predators, e.g. DDT leading to deaths of eagles and falcons. I hope this is correct.
Secondary succession is the ecological succession that occurs after the initial succession has been disrupted and some plants and animals still exist. It is usually faster than primary succession
Given what we know, we can confirm that molecular clocks are also used to help classify organisms.
<h3>Why are they used to classify organisms?</h3>
Molecular clocks can be used to help classify organisms by providing a context for the development of that organism. That is, they allow us to see the genetic history of evolution into that organism and to know to which organisms it is most closely related.
Therefore, we can confirm that molecular clocks are also used to help classify organisms.
To learn more about molecular clocks visit:
brainly.com/question/1177009?referrer=searchResults
Biodiversity decreases, and the overall health of the ecosystem decreases.
Answer: Option D
<u>Explanation:</u>
In a niche when two different species occupy a niche competition arises between them. In due course both the species fight for existence and nature selects the best adaptable one to win. The other species either reduces in its population or gradually in struggle for existence they deteriorate and die.
Hence a decrease in bio diversity happens here due to natural selection. If the biodiversity is decreased in a particular niche it affects the growth of different species which in turn affect the whole ecosystem resulting in decrease of the overall health in an ecosystem.
