non-disjunction is a pathological event that occurs during the second anaphase in meiosis when sister chromatids are not separated. As a result one of the resulting cells will have 1 extra chromosome and the other will be 1 short. An example of a non-disjunction that can occur in humans is Down syndrome that has a frequency of about 1/1000 people. It is caused by the non-disjunction of the 21st pair of chromosomes.
Spilled oil can harm the habitat because of its chemical constituents being poisonous. This can affect organisms both from internal and external exposure to oil. Oil can also end the lives of some small species of fish or invertebrates, reducing birds' and mammals' ability to maintain their body temperatures.
Since most oils float, most sea creatures are heavily affected by oil. Examples include animals like sea otters and seabirds.
Most states have issued some set of regulations to follow. Environmental Protection Agency's Rescuing Wildlife<span> page gives overview information about the issue. Additionally, </span>Tri-State Bird Rescue and Research<span> website and the </span>Oiled Wildlife Care Network<span> website explain the situation elaborately. </span>
Firstly they are not membranes and they are villi's which increase the surface area during digestion
The condensation of water vapor formed the early oceans. It is an important part of the water cycle. It is easy to eliminate the other answers in this question. It can't be meteorites, living organisms, or nitrogen.
The second one because they can indicate infection and sickness
