Origin of LIfe

Miller/Urey and other scientists studying the origin of life have shown that:

• Formation of life on early Earth required material from space

• Simple cells can be produced in a laboratory using spontaneous generation

• Oxygen and water were present in the atmosphere to support life

• Organic molecules like amino acids and nucleotides could be produced from abiotic/inorganic molecules

Which came first?

• Eukaryotes

• Prokaryotes

• Plants

• Both eukaryotes and prokaryotes evolved around the same time

This experiment was conducted by the scientists:

• Stanley Miller and Harold Urey
• Harold Urey and Albert Einstein
• Louis Pasteur and Francesco Redi
• James Watson and Francis Crick

The electrical sparks mimicked?

• heat waves
• lightening
• volcano
• hurricane

Tags

NGSS.MS-PS2-3

What was formed in the Miller-Urey experiments?

• amino acids

• proteins

• living cells

• DNA

Tags

NGSS.HS-LS1-6

Why are fossils rarely found in Precambrian rock?

• There was no evidence of life in Precambrian time
• Rocks from Precambrian have yet to be discovered
• Most Precambrian organisms did not have hard body parts that commonly form fossils
• Precambrian rock is buried too deeply for geologists to study

How old is the Earth?

• 6.4 billion  years
• 46 billion years
• 64 billion years
• 4.6 billion years

Tags

NGSS.HS-ESS1-6

What type of animal lived ONLY during the Mesozoic Era?

• Mammals
• Birds and mammals
• Dinosaurs
• All of them

Tags

NGSS.MS-LS4-1

What is the Cenozoic Era often called?

• Age of mammals
• Age of dinosaurs
• Age of reptiles
• Age of fishes

How long ago did the Cenozoic Era start?

• 45 million years ago

• 65 million years ago

• 34 million years ago

• 75 million years ago