Invading Plant Species

The video explores the balance between animals and plants in ecosystems and how this balance is disrupted by invader plant species. It highlights the challenges posed by invader plants like the kudzu vine and aquatic species that threaten native biodiversity. The impact on flowering plants and the role of invader species in pollination are discussed. While some invader species have positive effects, such as maize in agriculture, the video emphasizes the importance of controlling their spread to maintain diverse habitats.

What is the primary consequence of introducing a foreign plant species into a new environment?

• Increase in native plant diversity

• Enhancement of local wildlife habitats

• Decline in biodiversity

• Improvement in soil quality

Which plant species was introduced to the United States in the late 19th century and spread rapidly?

• Maize

• Knapweed

• Kudzu vine

• Water firm

How do aquatic invader species primarily affect their environment?

• By clogging waterways and consuming oxygen

• By enhancing the growth of native plants

• By providing food for native fish

• By increasing water clarity

What strategy does knapweed use to dominate its environment?

• Producing large fruits

• Attracting birds with its seeds

• Growing rapidly in water

• Releasing toxins to inhibit other plants

Which invader species has become the most commonly produced cereal crop worldwide?

• Knapweed

• Kudzu vine

• Maize

• Water firm