Origin of Life

Miller/Urey and other scientists have shown that:

•  Life on early Earth required material from space
• Cells survived in the primitive atmosphere
• Amino acids could be produced from inorganic molecules 
• Simple cells can be produced in a laboratory

The electrical sparks mimicked?

• The Sun's energy
• Lightning
• Volcanic eruptions
• Cosmic radiation

Tags

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This theory of the origin of life states that living things come from nonliving matter.

• spontaneous generation

• bubble hypothesis

• Primordial Soup theory

• Meteorite theory

Louis Pasteur used a goose-neck flask and demonstrated what?

• life spontaneously appears

• life begins from other organisms

• DNA is the building block

• Amino acids can be created artificially

Earth's early atmosphere had no

• gasses

• volcanoes

• water vapor

• free oxygen

Tags

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Bacteria and amino acids were brought to earh

• Primordial soup theory

• mass extinction

• meteorite hypothesis

• alien theory

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Which type of cell came first?

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

Spontaneous generation is

• a change in a species over time; process by which modern organisms have decended from ancient organisms

• A theory that life comes from non-living objects

• The species from whom a current one has decended

• A theory that life come from life

An explanation of the natural world. Describes how or why something is.

• theory

• fact

• law

• rule

Tags

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Organic molecules can form spontaneously from inorganic materials

• True

• False