Evolution (OCR A-Level Biology A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What do all tetrapods share that suggests common ancestry?
What do all tetrapods share that suggests common ancestry?
Same basic pattern of bones in limbs
What are homologous structures?
What are homologous structures?
Features with common origin, different uses
What are coprolites?
What are coprolites?
Fossilized faeces
Where are fossils predominantly found?
Where are fossils predominantly found?
Sedimentary rocks
What type of organism are the oldest known fossils from 3.5 billion years ago?
What type of organism are the oldest known fossils from 3.5 billion years ago?
Prokaryotes
In the Grand Canyon, what fossils appear in the bottom layer (1250 million years ago)?
In the Grand Canyon, what fossils appear in the bottom layer (1250 million years ago)?
Prokaryotic fossils only
What percentage of all species that ever lived are now extinct?
What percentage of all species that ever lived are now extinct?
Over 99%
What is unique about amino acids used in all living organisms?
What is unique about amino acids used in all living organisms?
All are left-handed
How many specific amino acids are used to construct proteins in all organisms?
How many specific amino acids are used to construct proteins in all organisms?
20
What molecule do all organisms use as their universal energy currency?
What molecule do all organisms use as their universal energy currency?
ATP