<span>They can rais the number of crops produced in an amount of time, they can also reduce the need for harmful pesticides. However, they may cause more allergies in humans, producing a health risk.</span>
Answer: Passive immunity
Explanation:
The strategy of vaccination was a type of passive immunity. Passive immunity can be introduced artificially when antibodies are given as a medication to the non immune individual.
This is done in case of vaccination, attenuated form of bacteria is injected or orally given to the individual to evoke immune response when the body is exposed to the same bacteria again.
The attenuated form of bacteria evoke the immune system to produce memory cells which will kill the bacteria when it is encountered for the second time.
The island's isolation provided a ecosystem that encouraged unique and specialized evolutionary traits in the flora and fauna on the island