Answer:
The correct answer is D) assimilation of external DNA into a cell
Explanation:
A bacteria is called transformed when it consist a genetic material that is not it's own but taken from outside the cell. So transformation of bacterial cell defines the uptake of foreign DNA by bacterial cell from its surrounding.
This transformation in bacteria is necessary because it provides bacteria some new and extra genes that help it to survive in the adverse and changing environment.
Transformation can result in getting the antibiotic-resistant gene to the bacteria which protect the bacteria from antibiotics during infection when antibiotic is used against it.
So the right answer is D) assimilation of external DNA into a cell.
Answer:
With a compromised immune system, people have a far more difficult time fighting off disease. Due to this, their bodies are more vulnerable to getting such diseases and cannot create the antibodies needed to fight the disease off.
Mutation can cause instant adaptation while natural selection is the process by which adaptation occurs over a series of generations.
They compete for food, water and space