Answer:
because genetic fusion is useful for adaptation in the environment
Genetic variation is thought to occur due to mutations, sexual testing, and small population size
Explanation:
Genetic variation is the variation that occurs in an organism, either on the basis of nucleotides, genes or chromosomes
sorry if this answer wrong
What table ? We can’t help because we can’t see what information was provided on the table
Answer:
Exposure to the disease
Explanation:
Before vaccines, the only way to develop immunity to a disease was to be exposed to the disease-causing pathogen without being harmed by it. A good example of this is smallpox, which was also the first vaccine developed. It was noticed that milk maids weren't catching and dying from small pox like everyone else, because they had been exposed to cowpox. This premise was used to create the first vaccine.
Vaccines give you immunity by injecting you with a small amount of a (usually inactive) pathogen. inside your body. This means your immune system produces antibodies against it. Similar to what happened with the milkmaids.
is d trust me natural selection is a change over time wich is what the guppy is going