A mistake in DNA replication before meiosis produces an organism that is better able to outrun predators.
Explanation:
The genetic variation results from the different alleles of a population. The mutation or mistake in DNA replication would cause gene variants which may be beneficial. The variation in the DNA sequence of genome results in variants in small population.
Genetic variation is the cause of natural selection and eventually, evolution takes place with beneficial traits.
It is mentioned in the question that resulting offspring having received the mutant allele could result in better surviving capabilities or phenotypic traits as they are able to outrun predators.
While many human activities produce greenhouse gases, the greenhouse effect is actually a natural process. Many atmospheric gases help trap heat in Earth's atmosphere, including natural gases like carbon dioxide. So while human activities exacerbate the natural greenhouse effect, it is not solely due to them.
There will be a defect. Some legs will most likely be longer than others.
Answer: Sumerians
Explanation: www.whodiscoveredit.com/who-discovered-mercury.html