General Agriculture MCQ
# Which of the following responses occur when predators interact with prey populations?
a. A numerical response.
b. A functional response.
c. A lag effect.
d. a., b. and c..
e. a. and b. only.
# An example of a biological control against insects is the use of
a. Herbicides
b. Wildlife refuges
c. Pesticides
d. Sex hormones
# As human consumers become less tolerant of insect damage on fruit, the economic thresholds for fruit pests are likely to:
a. Increase
b. Remain the same
c. Decrease
d. No way to tell
#Which of these is NOT considered an insect growth regulator?
a. Synthetic pyrethroid
b. Juvenile hormone analogue
c. Chitin inhibitor
d. Ecdysteroid
#Organophosphate and carbamate insecticides work by disrupting an insect’s:
a. Digestive system
b. Nervous system
c. Respiratory system
d. Endocrine system
(General Agriculture MCQ)
#The sterile-male technique would probably not work well for an insect pest whose:
a. Population is extremely abundant.
b. Individuals are easily mass reared.
c. Females mate only once in their lifetime.
d. Males are very strong fliers.
#Which of these is an “unbiased” sampling strategy?
a. Malaise trap
b. Light trap
c. Sticky trap
d. None of these
# Breeding nursey stock for higher levels of secondary plant compounds would be an example of:
a. Antixenosis
b. Xenobiosis
c. Antibiosis
d. Tolerance
# Which of these is likely to be regarded as the most “useful” biological control agent
a. A beetle that feeds on kudzu.
b. A parasite of lady beetles.
c. A predator of robber flies.
d. A viral pathogen of lacewings.
#To which of these groups do insect pathogens belong?
a. Viruses and bacteria
b. Protozoa and fungi
c. Bacteria and protozoa
d. All of these
(General Agriculture MCQ)
# Pest outbreaks tend to occur when:
a. Crops are planted in monoculture.
b. Natural enemies are imported from abroad.
c. Farmers switch to new crops.
d. All of these.
#Biological control is likely to be most effective when the predator or parasite has a:
a. Long life cycle
b. Wide range of preferred hosts
c. High reproductive rate
d. All of these
#Which insect orders contain species that are important pests of domestic animals?
a. Siphonaptera and Coleoptera
b. Orthoptera and Hemiptera
c. Diptera and Phthiraptera
d. All of these
# Which control strategy is likely to have the greatest impact on non-target organisms?
a. Chemical control
b. Cultural control
c. Biological control
d. Physical/mechanical control
(General Agriculture MCQ)
#Which insect order is most closely related to Diptera?
a. Hymenoptera
b. Orthoptera
c. Plecoptera
d. Thysanura
# To which class of arthropods do lobsters and shrimp belong?
a. Crustacea
b. Arachnida
c. Myriapoda
d. Xiphosura
#The order Hemiptera contains:
a. Bed bugs and stink bugs
b. Chewing and sucking lice
c. Roaches and mantids
d. Crickets and grasshoppers
#Which order is not holometabolous?
a. Siphonaptera
b. Hymenoptera
c. Thysanoptera
d. Neuroptera
#Which order is exclusively herbivorous?
a. Trichoptera
b. Odonata
c. Phasmatodea
d. Thysanoptera
(General Agriculture MCQ)
#Which order is exclusively parasitic?
a. Diplura
b. Phthiraptera
c. Zoraptera
d. Diptera
# Sucking mouthparts are NOT found in:
a. Fleas
b. Lice
c. Flies
d. Ants
#All ametabolous insects are:
a. Predatory
b. Wingless
c. Endognathous
d. All of these
# Immatures of the Neuroptera would be classified as:
a. Scavengers
b. Parasites
c. Herbivores
d. Predators
#What do the orders Mantodea, Dermaptera, and Isoptera have in common?
a. Winglessness
b. Chewing mouthparts
c. Herbivory
d. All of these
#Which insect order is most closely related to Dermaptera?
a. Hymenoptera
b. Orthoptera
c. Plecoptera
d. Thysanura
(General Agriculture MCQ)
#Which arthropods have chelicerae?
a. Spiders
b. Millipedes
c. Shrimp
d. All of these
# The order Orthoptera contains:
a. Bed bugs and stink bugs
b. Chewing and sucking lice
c. Roaches and mantids
d. Crickets and grasshoppers
#Which characteristic would not be found in the Onychophora?
a. One pair of antennae
b. Three tagmata
c. Jointed legs with claws
d. Segmented body
#Which order is exclusively hematophagous (blood feeders)?
a. Siphonaptera
b. Thysanoptera
c. Phasmida
d. Hymenoptera
(General Agriculture MCQ)
#Which structure is always associated with the Hymenoptera?
a. Furcula
b. Hamuli
c. Collophore
d. Elytra
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