18 Questions
Which type of plants have male and female flowers on the same plant?
Monoecious
Which of the following is NOT a common crop pollinated by bees?
Cotton
What is the primary role of honey bees in industrial agriculture?
Pollinating crops
Which type of plants need animal vectors for reproduction?
Angiosperms
What is the approximate number of U.S. crops that are partially dependent on bees?
100
Which of the following is a characteristic of self-fertile cultivars?
Capable of self-pollination
What is one of the complications mentioned in the text regarding flower morphology?
Flowers vary widely in nectar concentrations
How does heavy pesticide use affect nesting sites for native pollinators?
Reduces nesting sites due to soil manipulation
What benefit does cross-pollination provide for self-fertile highbush blueberries?
Increased fruit size and market value
Why can monoculture increase pollination demands beyond natural capacities?
Monoculture creates unnatural demands on pollinators
What is a consequence of a poor diet caused by limited pollen sources?
Poor attraction to crops
How does low plant diversity impact the demand for pollinators?
Increases the demand for pollinators due to varied plant types
Why are bumble bees preferred for pollinating certain crops like tomatoes and eggplants?
They do buzz pollination, which is required for certain flowers.
What is a challenge in using solitary bees as managed pollinators?
It is difficult to rear them in large numbers.
Why do honey bees often avoid pollinating alfalfa flowers effectively?
They learn to avoid the flower's tripping mechanism.
What distinguishes the behavior of ground nesting bees like the Alkali bee from honey bees in orchards?
Ground nesting bees deposit mud in orchard rows, unlike honey bees.
What is a distinguishing feature of Leaf Cutter Bees that makes them easy to use as managed pollinators?
They come as free cells and can be set up in enclosures near crops.
Why were tomatoes in greenhouses mechanically pollinated before the commercial rearing of bumble bees?
Honey bees were not effective pollinators for greenhouse tomatoes.
Explore the rapidly evolving field of pollination biology, focusing on crops, flowers, honey bees, and other managed pollinators. Learn about the significant impact of bees on about 100 U.S. crops and the global food supply.
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