• a liver is transplanted from a donor to a recipient - adaptive immune response (via T killer cells or B cells)
• a person is injected with the typhoid vaccine-adaptive immune response (The immune response to vaccination may not be perceived as illness but still confers immune memory)
• swelling occurs around the area of a scratch-innate immune response (inflammation)
• a person has a high fever during a viral infection-innate immune response(includes substances called interferon and interleukin-1 which causes fever).
It is the decreasing effectiveness of antibiotics. The reason for this could possibly be because the bacteria has had a mutation so the antibiotic won’t affect them.
A, meningeal blood vessels is the correct answer.
I know the correct answer is Gametes.
A Gamete is a <span> mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
This is formed in the process of meiosis.
Hope I helped, and good luck!
~Vinny :)</span>