AGRI 412 ACTIVITY QUIZ 2
Authored by Yna Banila
Professional Development
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which BEST explains why food webs are more stable than food chains?
Food webs show only herbivores and carnivores.
Food webs connect multiple organisms, allowing alternative feeding pathways.
Food chains always involve decomposers.
Food chains do not include abiotic components.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A farmer notices that cabbage aphids become more destructive after harvest season when crops are already declining. Which factor explains this phenomenon?
Habitat advantage
Starvation
Decline of food supply
Functional response
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which pest is most likely to spread fungal plant diseases in a humid rice field?
Termites
Mosquitoes
Nematodes
Aphids
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A release program fails because the control agent cannot find the host — which factor (below) is the MOST likely cause?
The pest’s protective retreats (e.g., galls, tunnels) reduce exposure to the agent.
The agent is highly host-specific.
The pest has a high reproductive rate.
The pest is native to the area.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which strategy would likely reduce the need for frequent augmentative releases?
Stop planting nectar sources to discourage pests.
Improve habitat for resident natural enemies (flower strips, reduced broad-spectrum insecticides).
Increase use of broad-spectrum insecticides.
Import more exotic predators each season.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A farmer wants to control a caterpillar outbreak. Which biological control agent is MOST suitable?
Bacillus thuringiensis (Bt)
Lady beetles
Lacewings
Predatory mites
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which insect virus is MOST likely to be transmitted by a parasitoid wasp rather than through insect feeding?
Nuclear Polyhedrosis Virus (Npv)
Entomopox Virus
Ascovirus
Iridovirus
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