Answer:
A
Explanation:
The enterobacteriaceae group (enteric bacteria) are bacteria found only in the intestine. Enteric literally means intestine. They are gram negative bacilli that are non- spore forming, most are motile. The consist of many genera and strains that colonize the small and large intestine and includes members of the non-pathogenic autochthonous (bacteria that are native species of the intestine, they are neither hurting nor helping the system) microbiota as well as pathogens. Examples of the pathogens include some strains of <em>Escherichia coli</em>, <em>Salmonella typhii,</em> <em>Shigella spp.</em> Examples of the non-pathogenic enteric bacteria includes <em>Lactobacillus acidophillus</em> and some strains of Escherichia coli.
The correct answer is: To propose the theory of evolution by natural selection
Bias can be present in a secondary source because it can be altered or changed. Secondary sources are after the event in question has taken place therefore MORE open to change, subjectiveness.
DNA content is halved in both meiosis I and meiosis II. Ploidy level changes from diploid to haploid in meiosis I, and remains haploid in meiosis II.
<span>During anaphase of both meiosis I and meiosis II, the DNA content (number of copies of chromosomes) in a cell is halved. However, the ploidy level changes only when the number of unique chromosome sets in the cell changes. This occurs only in meiosis I (where separation of homologous chromosomes decreases the ploidy level from 2n to n and produces daughter cells with a single chromosome set).</span>
