Ecosystem Changes and Organism Impact

What is the primary impact on organisms when humans change an ecosystem?

• Organisms adapt to the new environment without issue.

• The organisms living in that ecosystem are affected.

• Only human populations are impacted.

• The ecosystem becomes more diverse.

Why does the extermination of prairie dogs by farmers negatively impact the black-footed ferret population?

• Prairie dogs compete with ferrets for the same food sources.

• Ferrets are harmed by the chemicals used to exterminate prairie dogs.

• Prairie dogs are the primary food source for black-footed ferrets.

• Ferrets rely on prairie dog burrows for shelter.

How does overfishing affect shark populations?

• It increases the shark population due to less competition.

• It reduces the food available to sharks, causing their population to decline.

• It forces sharks to migrate to new ecosystems.

• It has no significant impact on shark populations.

What is the consequence of removing producers, such as oak trees, from an ecosystem?

• Only the animals that directly eat the producers are affected.

• It creates new opportunities for other plant species to grow.

• It harms all consumers in the ecosystem by removing their food and shelter.

• The ecosystem quickly recovers with new producers.

What generally happens to an animal population when its primary food source significantly increases?

• The population remains stable.

• The population decreases due to overpopulation.

• The population increases.

• The animals migrate to find new food sources.

How does the construction of a highway through a forest impact the local animal populations?

• It provides new pathways for animals to travel.

• It increases the available habitat for animals.

• It reduces animal populations by destroying their habitat and food sources.

• It has no significant effect on animal populations.

How do artificial reefs contribute to marine ecosystems?

• They decrease the overall marine population.

• They provide new habitats that help increase marine populations.

• They attract invasive species that harm native organisms.

• They only benefit a small number of specific marine species.

What is a common negative consequence of introducing a new species into an ecosystem?

• It always leads to increased biodiversity.

• It can harm native organisms by competing for resources or covering native plants.

• It has no impact if the new species is small.

• It only affects the introduced species' population.