Scientists discover the world's oldest biological color

Scientists discover the world's oldest biological color

Assessment

Interactive Video

Science, Biology

11th Grade - University

Hard

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The video discusses the discovery of bright pink pigment in marine black shales beneath the Sahara Desert, identified as molecular fossils of chlorophyll from ancient photosynthetic organisms. These organisms, primarily cyanobacteria, thrived in ancient oceans a billion years ago. Around 650 million years ago, these oceans began to disappear, and algae started to spread, significantly contributing to the evolution of ecosystems.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What was discovered in the Marine black shales beneath the Sahara Desert?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the molecular fossils found in the pink pigment actually remnants of?

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3.

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3 mins • 1 pt

What type of organisms produced the pink pigment found in the ancient ocean?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

When did the cyanobacteria in the Asian oceans start to disappear?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What role did algae play in the evolution of ecosystems after cyanobacteria disappeared?

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