Biodiversity and Ecosystem Resilience

The video discusses the vulnerability of ecosystems and the importance of biodiversity, which consists of ecosystem, species, and genetic diversity. It highlights the Amazon rainforest's rich biodiversity and explains how genetic diversity contributes to resilience. The video also examines coral reefs as an example of ecosystems dependent on keystone species. It concludes by emphasizing the interconnectedness of humans and biodiversity, warning that losing biodiversity threatens our well-being.

What is a key factor that determines the strength of an ecosystem in the face of change?

• Biodiversity

• The size of the ecosystem

• The number of predators

• The amount of sunlight

Which of the following is NOT a component of biodiversity?

• Ecosystem diversity

• Species diversity

• Genetic diversity

• Climate diversity

Why is the Amazon rainforest considered one of the most biodiverse regions on Earth?

• It is located near the equator

• It has a complex ecosystem with a variety of species and genetic diversity

• It has a high altitude

• It has a large number of rivers

What role does genetic diversity play in the resilience of species?

• It makes species more vulnerable to changes

• It isolates species from each other

• It allows species to adapt to changes

• It decreases the population size

What happens when a species with a weakened gene pool disappears?

• The ecosystem becomes stronger

• New species immediately replace it

• A knot in the biodiversity net is untied

• The ecosystem becomes more diverse

What is a keystone species?

• A species that lives in the ocean

• A species that is the largest in the ecosystem

• A species that many others depend on for survival

• A species that is the most colorful

How do coral reefs contribute to biodiversity?

• They are made of sand

• They are located in cold waters

• They are the largest ecosystems on Earth

• They provide microhabitats and breeding grounds for many species

What is the consequence of losing a keystone species like coral?

• The ecosystem becomes more stable

• New species quickly fill the gap

• The ecosystem becomes more colorful

• The entire fabric of the reef is threatened

How are humans connected to biodiversity?

• Humans are not affected by biodiversity

• Humans are woven into the biodiversity net

• Humans only affect biodiversity in urban areas

• Humans are separate from natural ecosystems

What is the role of biodiversity in ensuring the survival of organisms on Earth?

• It acts as Earth's safety net

• It decreases the number of species

• It isolates ecosystems

• It reduces genetic diversity