Superorganisms and Ecosystem Interactions

The video explores the concept of the largest living things on Earth, challenging traditional definitions by considering organisms like the honey fungus, Posidonia australis, Pando, and the Great Barrier Reef. It also introduces the Gaia Hypothesis, which views Earth as a superorganism. Each example highlights unique characteristics and challenges, such as climate change and disease, affecting these massive entities.

What is a superorganism?

• An organism that can change its form

• A single organism with multiple functions

• A group of organisms that work together as a single entity

• A large organism that lives in the ocean

What is the honey fungus primarily known for?

• Its colorful appearance

• Its extensive underground network

• Its large fruiting bodies

• Its ability to produce honey

Where is the largest version of the honey fungus located?

• British Columbia, Canada

• Oregon, USA

• Queensland, Australia

• California, USA

What is unique about the seagrass bed of Posidonia australis?

• It is the tallest plant in the world

• It is the most colorful marine plant

• It is a single organism with the same DNA

• It is the largest animal in the ocean

What is the main threat to the Posidonia australis seagrass bed?

• Pollution

• Climate change

• Invasive species

• Overfishing

What is Pando?

• A species of fungus

• A type of marine plant

• A clonal colony of aspen trees

• A single large tree

How does Pando primarily spread?

• Via spores

• Through pollination

• By suckering

• Through seeds

What makes the Great Barrier Reef a superorganism?

• Its interconnected reefs and organisms

• Its ability to move

• Its location in the Coral Sea

• Its size and color

What does the Gaia Hypothesis propose?

• Earth is a collection of separate ecosystems

• Earth is the largest planet in the solar system

• Earth is primarily composed of water

• Earth is a single large living organism

What role do algae play in the Great Barrier Reef?

• They clean the water

• They protect corals from predators

• They provide food through photosynthesis

• They attract tourists