Antibiotic resistance occurs<span> when </span>bacteria change<span> in </span>a way<span> that </span>reduces<span> the </span>effectiveness<span> of </span>drugs<span>, </span>chemicals<span>, or </span>other agents designed<span> to </span>cure<span> or </span>prevent infections<span>. The </span>bacteria survive<span> and </span>continue<span> to </span>multiply<span>, </span>causing more harm to a person or host<span>.</span>
<span>Natural selection is likely when there are stronger selection pressures. For example, a perpetual selection pressure is the fact that organisms have to compete for food and resources, meaning the best adapted ones survive. However, a stronger selection pressure may cause natural selection to occur more obviously. An example of this is when the number of white peppered moths decreased during industrialization in England due to the soot collecting on the trees. The change in population was very fast and obvious.</span>
In physics, radiation<span> is the emission or transmission of energy in the form of waves or particles through space or through a material medium. This includes: electromagnetic </span>radiation, such as radio waves, microwaves, visible light, x-rays, and gammaradiation<span> (γ)</span>
Answer:
DNA replication
Explanation:
For the most part of a cell's cycle, each chromosome has only one chromatid.
Before entering meiosis, a diploid cell (which contains a set of chromosomes from one parent and another set from the other parent) first doubles its DNA, and the cell will start division with each chromosome having 2 sister chromatids.
During meiosis I homologous chromosomes (the maternal and paternal sets) separate, and during meiosis II the sister chromatids separate. As a result, 4 daughter cells with half the original diploid chromosome number and one chromatid per chromosome are produced.
Phytoplankton are single celled microscopic plants that float c:
