Origin of life on Earth

When did life forms first come into existence?

• 6.5 billion years ago

• Yesterday

• 3.5 billion years ago

• 200 million years ago

Tags

NGSS.HS-ESS1-6

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age
  
• Fossil B is older than fossil C
• Fossils A is older than fossil B
• Fossil D is older than fossil C

Tags

NGSS.HS-ESS1-5

The first prokaryotes did not require oxygen and were

• anaerobicc

• aerobic

• both aerobic an anaerobic

Tags

NGSS.HS-LS2-3

This bacteria formed 3.5 bya and was photosynthetic and release oxygen into the atmosphere.

• cyanobacteria

• E. coli

• archae bacteria

• mitochondria

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Earth's early atmosphere had no

• gasses

• volcanoes

• water vapor

• free oxygen

Tags

NGSS.HS-ESS1-6

Which type of cell came first?

• Eukaryotic
• Prokaryotic
• Plant
• Both Eukaryotic and Prokaryotic cells evolved around the same time

Tags

NGSS.HS-LS4-1

Mitochondria and chloroplasts are thought to be ________________________ cells engulfed by a larger one.

• plants

• prokaryotic

• eikaryotic

• viruses

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NGSS.HS-LS4-1

NGSS.HS-LS4-2

A repeating cycle whereby organic molecules could have been brought together by energy from underwater volcanic gas bubbles and released into the atmosphere where UV rays changed them further

• evolution syntheis

• primordial soup theory

• creation theory

• Bubble hypothesis

Tags

NGSS.HS-LS1-6

NGSS.HS-LS2-3

This bacteria formed 3.5 bya and was photosynthetic and release oxygen into the atmosphere.

• cyanobacteria

• E. coli

• archae bacteria

• mitochondria

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

The Earth was ‘seeded’ with life by other sources in the universe

• universal truth theory

• panspermia

• alien seeding theory

• meteor shower hypothesis