When two closely interacting species exert selective pressure on each other

Bugs 101 Insect-Human Interactions

Week 6 >>> Module 06 Quiz

Question 1

When two closely interacting species exert selective pressure on each other, reciprocal adaptations can evolve and thus result in the evolution of novel adaptive traits. This process is known as:

1 / 1 point

Ecological fitting

Specific coevolution

Diffuse coevolution

Antibiosis

Cospeciation

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Question 2

Many orthopteran insects feed on the foliage of plants with basic chewing mouthparts. What feeding guild do these insects belong to?

1 / 1 point

Frugivores

Detritivores

Leafminers

Xylophages

Defoliators

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Question 3

Some insects are specialized to feed on only a particular species of host plant. What kind of feeding strategy do these insects display?

1 / 1 point

Polyphagy

Oligophagy

Coprophagy

Monophagy

Xylophagy

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Question 4

What kind of mouthparts do you expect to observe in sap-feeding insects?

1 / 1 point

Sponging mouthparts

Raptorial mouthparts

Piercing-sucking mouthparts

Chewing-biting mouthparts

Lapping mouthparts

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Question 5

Which of the following best describes secondary plant metabolites?

1 / 1 point

Compounds produced by plants that impact an insects metabolism when ingested

Compounds produced by plants that provide nourishment for beneficial insects

Compounds produced in excess by plants during good conditions, as a reservoir for tough times

Compounds produced by plants that are not involved in plant growth and metabolism

Compounds produced by insects that adversely impact the health of a plant

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Question 6

Most sap feeders belong to which order of insects?

1 / 1 point

Hymenoptera

Hemiptera

Lepidoptera

Coleoptera

Diptera

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Question 7

How is gall formation stimulated? Select 2 that apply.

1 / 1 point

Feeding activity by an insect

Tumorous growth of plant cells

The presence of foreign material on the plant

Climatic conditions

Chemicals injected into the plant’s tissues

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Question 8

Why might invasive herbivorous insects do more damage to a local crop than native pest species? Select 2 that apply.

1 / 1 point

Invasive species are typically tougher and more competitive than local species

The crop has not had the chance to co-evolve with the invasive insect herbivore

Invasive species move faster throughout the crop and require more food for energy

Natural predators and parasites are not present in the expanded range of the invasive species

Invasive insects are better adapted than native species to feed on a diversity of crops

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Question 9

Which of these can be classified as a chemical plant defence against herbivory? Select 2 that apply.

1 / 1 point

Resin

Domatia

Gall

Thorns

Secondary plant metabolites

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Question 10

How can plant-feeding insects take advantage of plant chemical defences? Select 2 that apply.

1 / 1 point

Development of aposematic colouration

Use them as host finding cues

Sequestration of toxins for self-defence

In the production of essential nutrients

Increasing development rates

Home » Bugs 101 Insect-Human Interactions » When two closely interacting species exert selective pressure on each other

When two closely interacting species exert selective pressure on each other

Bugs 101 Insect-Human Interactions

Week 6 >>> Module 06 Quiz

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