Apopulation of snail darters is drastically reduced by the introduction of a large predator fish into an isolated stream. the predators eat almost all darters less than 5cm long. this is an example of a. the bottleneck effect b. diversifying selection c. natural selection d. gene flow e. allopatric speciation

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

Wich level of organization includes all the other levels or organizations