Understanding Complexity in Nature

What did Leonardo da Vinci mean by 'Simplicity is the ultimate sophistication' in the context of nature?

• Simple organisms are not important.

• Complexity is unnecessary in nature.

• Simple organisms form the foundation of ecosystems.

• Sophistication is only found in complex organisms.

How does a lever demonstrate the concept of a simple machine?

• It is made of complex components.

• It is only used in modern machinery.

• It can lift more weight than a person alone.

• It cannot be combined with other components.

Why do unicellular organisms not have a heart?

• They rely on external oxygen sources.

• They do not need to pump oxygen.

• They have a different circulatory system.

• They are too small to have organs.

What is a unique ability of amphibians like frogs?

• They can fly.

• They can absorb oxygen through their skin.

• They have four-chambered hearts.

• They can live without water.

What makes poison dart frogs particularly dangerous?

• Their bright colors.

• Their ability to fly.

• Their large size.

• Their potent skin poison.

What is a remarkable ability of newts?

• They can live without water.

• They can change colors.

• They can regenerate lost body parts.

• They can fly.

What is a primary complex ability of fish?

• Changing colors.

• Living on land.

• Breathing underwater.

• Flying through the air.

How do reptiles regulate their body temperature?

• By sweating.

• By basking in the sun.

• By drinking water.

• By eating frequently.

What is unique about the arctic tern's migration?

• It migrates only once in a lifetime.

• It never returns to its starting point.

• It travels from the north pole to the south pole annually.

• It flies the shortest distance.

What distinguishes mammals from other animal groups?

• They are cold-blooded.

• They can fly.

• They produce milk for their young.

• They have scales.