Articles > Biosecurity and Biocontrol – Quiz Biosecurity and Biocontrol – Quiz Quiz Choose the best answer. 1. Biodiversity refers to the various measures implemented to secure the life of an organism or of an entire species population. True. That's because biodiversity entails species richness and abundance in an ecosystem. True. Biodivesity entails various measures to prevent decrease in species diversity. False. It is not biodiversity but biosecurity. False. Biodiversity refers to the various measures preventing diversity in an ecosystem. 2. Psa, the agent of the Psa-V disease in kiwifruit, was controlled by spraying the affected orchards with antiviral agents. True. Spraying with antiviral agents proved effective in killing Psa. True. That action was done together with cultivar screening technique. False. Psa was controlled by not cultivating anymore kiwifruit in New Zealand. False. Psa control was done by spraying with antibacterial agents. 3. When "Austropuccinia psidii", the agent of myrtle rust, caused a major concern in New Zealand, some of the management and control strategies included boosting plant resistance and speeding up the detection of the infection. True. Myrtle rust caused a huge concern because New Zealand has many native plants in the myrtle family. True. The fungus, which is endemic to New Zealand, affected major plants in the family Myrtaceae. False. It was not a fungus but a bacterial species. False. The strategy made to manage myrtle rust is by seed banking collection. 4. Biological control means controlling a population of another organism by any means available. True. It can be through a natural predator, by using a pesticide, or by gene bank. True. One example of that is the control of invasive weeds outcompeting essential crops. False. Biological control means controlling the reproductive capacity of a biological species. False. Biological control means you are going to use an organism to control a population of another organism. 5. New Zealand's ecosystem has not had any biological threat issue. True. The country is geographically isolated and therefore there are no any land mammal predator. True. The country has high flora and fauna biodiverstiy. False. The country is also susceptible to biological threats and therefore has come up with various biosecurity measures. False. Their ecosystem has encountered biological threats, albeit minimal impact only. Send Your Results (Optional) Your Name To Email Time is Up!