1, 2, 3
Because of Flint's water crisis;
- The number of children with lead poisoning doubled.
- General Motors stopped using Flint's water due to corrosion of their machinery.
- Dozens of people contracted a form of pneumonia known as Legionnaires' disease.
Explanation:
In a bid to save money, Flint City Council resolved to switch its water supply to the city in 2014 and also switching from the Detroit Water and Sewerage Department (DWSD) as a provider to Karegnondi Water Authority (KWA). During the process of switching, water from Flint River was used as a temporary source of water for the residents. This water was however not treated and caused corrosion of supply pipes which led to the leakage of lead into the water supply. The water was also filled with other mineral contaminants that made the water hard and later high levels of chlorine were detected. This also caused General Motors to stop using the water because it corroded its machines.
The levels of lead caused lead poisoning especially to children while dozens of adults suffered Legionnaires' disease a form of atypical pneumonia caused by<em> Legionella </em>bacteria in the water. The city officials did not warn residents in time even after com0lanit of foul smell and redness of the water supply.
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Answer:
The correct answer is b a mutation in a gene that codes for protein regulating cell division.
Explanation:
Cancer is a disease that result due unregulated cell divison.There are many tumor suppressor protein present in our body such as retinoblastoma tumor suppressor protein,p53 protein.
These tumor suppressor protein helps to carry out cell divison in a regulated fashion and send signal for division only to that cell that have undamaged DNA.
Mutation in the gene encoding tumor suppressor protein leads to development of cancer.
The human genome has been estimated to have 20,000 - 25,000 human protein - coding genes.
Before it was thought that the number of genes in the human genome was about 100,000, but with better and more advanced gene finding technology, this number has been revised down to the current estimate, and could continue to drop further.
The human genome has 23 chromosome pairs with a total of about 3 billion DNA base pairs. There are 22 autosomal chromosomes plus the sex determining X and Y chromosomes, to make 23 pairs.
Think of when pangea was a thing, when the continents were "all together". They moved apart, obviously, and they can fit like puzzle pieces. If that makes sense? Because they were once all together.
Answer:
Phytoplankton are the autotrophic components of the plankton community and a key part of ocean and freshwater ecosystems.
