Evolution of Life (Leaving Cert CASD): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What was a key characteristic of Earth's early atmosphere?
What was a key characteristic of Earth's early atmosphere?
No oxygen present
Approximately when did the earliest microbes live on Earth?
Approximately when did the earliest microbes live on Earth?
3.7 billion years ago
What are stromatolites?
What are stromatolites?
Hard structures from microbial mats
When did the Great Oxidation Event occur?
When did the Great Oxidation Event occur?
2.4 billion years ago
What do Banded Iron Formations (BIFs) provide evidence for?
What do Banded Iron Formations (BIFs) provide evidence for?
Rise in atmospheric oxygen
What is the function of mitochondria in cells?
What is the function of mitochondria in cells?
Convert food into energy
Why were sponges significant as Earth's first reef builders?
Why were sponges significant as Earth's first reef builders?
They had hard skeletons
When did the Ediacaran Period begin?
When did the Ediacaran Period begin?
580 million years ago
What likely contributed to the end-Ediacaran extinction?
What likely contributed to the end-Ediacaran extinction?
Worm-like animals burrowing
What major achievement occurred by the end of the Cambrian Period?
What major achievement occurred by the end of the Cambrian Period?
Nearly all animal phyla established