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WorksheetsEarly Life - Evolution Unit
Total questions: 8
Worksheet time: 5mins
What were the earliest lifeforms we are aware of?
Microbes
Sponges
Eukaryotes
Was Earth always a relatively Oxygen-rich place?
Yes
No
What were Earth's first photosynthesizers?
Cows
Sponges
Cyanobacteria
Trees
What event occurred after the emergence of Cyanobacteria?
The Great Gaseous Event
The Great Oxidation Event
The Ultimate Oxygen Event
The Ultimate Photosynthesis Era
How did Eukaryotes form?
Microbes began forming organelles on their own
Eukaryotes suddenly appeared
Eukaryotes were always present
Microbes began living inside other Microbes
Specialized, cooperating cells eventually became...
Microbes
Prokaryotes
Animals
Viruses
What makes sponges so unique?
They were among the earliest animals
They can survive in low-oxygen environments
They lived all across the early Earth's lands
They led to the creation of eukaryotic cells
What types of evidence were used to determine the age and characteristics of ancestral organisms?
Live Dissection
DNA Evidence
Fossil Evidence
Comparative Anatomy
