Origins of Life on Earth Quiz

What is the theory that states life comes from non-living things called?

• Biogenesis

• Abiogenesis

• Spontaneous Generation

• Evolution

What did the first life forms on Earth probably look like?

• Complex multi-celled organisms

• Simple single-celled organisms

• Large aquatic animals

• Small plants

Where did some chemicals that formed life come from?

• Water and volcanic gases

• Soil and plants

• Rocks and minerals

• Sunlight and air

What is the main topic of the document?

• Evolution of species

• Origins of life on Earth

• Climate change

• Space exploration

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Where do many scientists think life got its start around 3.7 billion years ago?

• In the atmosphere

• On land

• In deep-sea hydrothermal vents

• In outer space

What did the primitive life forms harness around the vents to create the building blocks of life?

• Oxygen and nitrogen

• Carbon dioxide and hydrogen

• Methane and ammonia

• Water and sunlight

What is the term used for organisms that can make their own food using energy from the sun?

• Heterotrophs

• Autotrophs

• Prokaryotes

• Eukaryotes

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What significant change did photosynthesis bring to the Earth's atmosphere?

• Increased nitrogen levels

• Increased oxygen levels

• Decreased carbon dioxide levels

• Increased methane levels

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What is required to hold together the organic materials in a cell?

• DNA

• Proteins

• Membrane

• Ribosomes

What type of cells engulfed cyanobacteria according to the endosymbiotic theory?

• Complex Cells

• Smaller cells

• Prokaryotic cells

• Plant cells