2. Panspermia Theory

What is the panspermia theory?

• The theory that life on Earth originated from another planet

• The theory that life on Earth originated from religious doctrine

• The theory that life on Earth originated from scientific experiments

• The theory that life on Earth originated from the Big Bang

What is one argument that supports the panspermia theory?

• The emergence of life during the heavy bombardment period of Earth

• The absence of any evidence for life on Earth

• The discovery of extraterrestrial life on Mars

• The belief that life can only originate on Earth

Why is it difficult to define the conditions that favor life?

• Because life can only exist on Earth

• Because life can withstand extreme conditions

• Because life requires specific temperatures to survive

• Because life is composed of organic matter

What does the presence of water elsewhere in the universe indicate?

• The presence of life

• The absence of life

• The possibility of life

• The impossibility of life

What does the presence of organic matter in meteorites suggest?

• That life on Earth originated from outer space

• That organic matter is not considered life

• That organic matter is unique to Earth

• That organic matter cannot survive in space

What is the best candidate to act as 'seeds of life' according to the panspermia theory?

• Bacterial spores

• Plant seeds

• Animal eggs

• Human DNA

How long can bacterial spores remain viable?

• Up to 1 year

• Up to 10 years

• Up to 100 years

• Up to 250 million years

What did the study of Halley's Comet's dust particles suggest?

• The presence of bacteria in outer space

• The absence of bacteria in outer space

• The presence of alien life forms

• The absence of organic matter in comets

What does the future of science and technology hold regarding the origin of life?

• The discovery of life on other planets

• The confirmation that life is unique to Earth

• The modification of current ideas about life's origin

• The ability to create life in a laboratory