Exploring Early Multicellular Life

The video discusses some of the oldest multicellular fossils, dating back 650 to 700 million years, found in the Ediacara Hills of Australia. These fossils include impressions resembling jellyfish, sea pens, and segmented worms, representing early complex organisms. Today, Earth hosts over 10 million species, showcasing the planet's rich biodiversity.

How old are the oldest known multicellular fossils?

• 2 billion years

• 1 billion years

• 650 to 700 million years

• 200 to 300 million years

Where were several thousand fossil specimens of ancient multicellular life collected?

• The Rocky Mountains

• The Ediacara Hills of Australia

• The Amazon Rainforest

• The Sahara Desert

Which of the following is NOT a type of fossil found in the Ediacara Hills?

• Fossils of dinosaurs

• Rounded depressions resembling jellyfish

• Star-like fronds resembling sea pens

• Elongated impressions of segmented worms

What do scientists believe these ancient fossils represent?

• The first mammals

• The first single-celled organisms

• The first plants

• The first complex, specialized, multicellular organisms

Approximately how many different kinds of living things are known to inhabit Earth today?

• 10 million

• 50 million

• 5 million

• 1 million