TED-Ed: Why is biodiversity so important? - Kim Preshoff

The video explores the vulnerability of ecosystems to collapse, emphasizing the importance of biodiversity, which consists of ecosystem, species, and genetic diversity. The Amazon rainforest exemplifies a resilient ecosystem due to its rich biodiversity. Genetic diversity within species is crucial for coping with environmental changes. Coral reefs are highlighted as ecosystems where the loss of keystone species, like coral, can lead to collapse. Humans are interconnected with biodiversity, and its loss threatens our well-being. Biodiversity acts as Earth's safety net, ensuring survival amidst unpredictable changes.

What are the three intertwined features that make up biodiversity?

• Climate diversity, species diversity, and genetic diversity

• Ecosystem diversity, species diversity, and genetic diversity

• Ecosystem diversity, climate diversity, and genetic diversity

• Species diversity, genetic diversity, and climate diversity

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

• Due to its complex ecosystems, species variety, and genetic diversity

• Because of its large size and high rainfall

• Due to its proximity to the equator

• Because it has the most trees in the world

How does genetic diversity within a species contribute to its survival?

• It makes the species more attractive to predators

• It makes the species more vulnerable to diseases

• It allows the species to adapt to environmental changes

• It decreases the species' ability to reproduce

What is a keystone species, and why is it important?

• A species that many others depend on for survival

• A species that is the fastest growing

• A species that is the largest in its ecosystem

• A species that is the most colorful

What can happen to coral reefs if the coral, a keystone species, is weakened or destroyed?

• The reef will become more colorful

• The entire fabric of the reef may be threatened

• The reef will attract more fish

• The reef will grow larger