Ecosystem Dynamics and Adaptations

The video explores ecosystems, highlighting their biotic and abiotic components, and the interactions within. It explains the difference between habitats and ecosystems, using examples like the Sonoran Desert, mangroves, and the Arctic. The impact of introducing new species is discussed, with New Zealand as a case study. The video concludes by emphasizing the interconnectedness of nature and encourages viewers to engage with more biology content.

What is an ecosystem primarily composed of?

• Only living organisms

• Only non-living elements

• A mix of living organisms and non-living elements

• Only plants and animals

Which of the following is a biotic component of an ecosystem?

• Soil

• Water

• Fungi

• Sunlight

How does a habitat differ from an ecosystem?

• A habitat includes multiple ecosystems

• A habitat is a specific place where an organism lives

• A habitat consists only of non-living elements

• An ecosystem is smaller than a habitat

What adaptation helps the saguaro cactus survive in the Sonoran Desert?

• Deep roots

• Widespread shallow roots

• Ability to store salt

• Thick leaves

Which ecosystem is known for its roots thriving in saltwater?

• Mangrove forests

• Arctic

• Grasslands

• Deserts

What role do bacteria play in mangrove ecosystems?

• They produce oxygen

• They act as predators

• They decompose leaves, providing food for other organisms

• They provide shelter for fish

In the Arctic ecosystem, what do polar bears primarily hunt?

• Algae

• Seals

• Fish

• Arctic foxes

What was a significant consequence of introducing new species to New Zealand?

• Introduction of new plant species

• Improved ecosystem balance

• Extinction of native bird species

• Increased biodiversity

How many native bird species are estimated to have gone extinct in New Zealand due to new predators?

• 25

• 10

• 100

• 53

What is a key takeaway about ecosystems from the video?

• Ecosystems do not change over time

• Ecosystems are only found in extreme environments

• Ecosystems are independent of each other

• Everything in nature is interconnected