Answer:
C. The bacteria that survived were transformed with plasmid that contains the resistance gene for ampicillin.
Explanation:
Plasmids are small, circular double stranded DNA molecules that are found in bacteria. It carries genes that provides the bacteria with an advantage.
There are five types of plasmids namely, Fertility F-plasmids, resistance plasmids, Virulence plasmids, degenerative plasmids and the Col plasmids.
Ampicillin is an antibiotic that is supposed to kill the bacteria. However, most bacteria have resistance plasmids that can lead to antibiotic resistance.
That explains why some of the bacteria survived.
It’s how even a community is So if there are 40 foxes and 1000 dogs, the community is not very even. I think it’s C
The process of mountain building is called Orogeny.
Answer: Acquired Active Immune Response System
Explanation:
Vaccines are substances that are prepared from the causative agent of a disease or its synthetic substitute, which is treated to mimic the actual antigen of the disease. This artificial antigen of the disease, thereby stimulates the production of antibodies that helps in fighting the disease and also provides immunity against the disease in the body.
A primary response system is stimulated in the presence of the vaccine, which acts as an antigen. In this way, an artificially acquired active immune response system is created naturally using vaccines.
