Answer:
d
Explanation:
<em>Crossing over shuffles alleles on non-sister chromatids of homologous chromosomes.</em>
At the prophase I stage of meiosis, homologous chromosomes synapsed to form a four-chromatid structure known as tetrad. Exchange of chromosomal segments between non-sister chromatids of the tetrad then takes place, a process that results in the reshuffling of genes or alleles on the non-sister chromatids.
Hence, none of the answers is correct.
Correct option: d
The answer is A.
The answer is A because that is the only positive of the entire set of answers.
B has a negative word of pollution which is something we are currently trying to stop.
C has threaten which would make other fish populations threatened or other aqua culture
And D has diseases which is obviously negative for the fact that diseases causes death and will ultimately lead to an endangered or extinct species if mutations or adaptions are not made.
Hope this helps!
That's true heat and pressure causes rock forms to change.
Answer:
Option c. It explains a set of persistent and interconnected data points and relationships.
Explanation:
In science, a theory can be defined as a tested, proven and unifying explanation of the phenomena which is factually supported and has data in support of it gathered over a period of time.
The facts and data are repeatedly tested before a theory is given and it explains many phenomena and some yet to experimented phenomena and their explanations are provided by the established theories.
Therefore, it is a set of persistent and interconnected data points and relationships.
The answer is B. Cholera
The other options are caused by a virus. Cholera was caused by bacterium Vibrio Cholera. The classic symptom of cholera is diarrhea that lasts for a few days. It could result in life threatening dehydration and electrolyte imbalance
Cholera is infected between 3 - million people worldwide, while it's considered as a pandemic, it rarely happens in a developed country like the U.S.A.
I hope I helped! =D
