The Origins of Life

What was formed in the Miller-Urey experiments?

• amino acids

• proteins

• living cells

• DNA

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The image provided represents the following experiment to test Earth Early Atmosphere...

• Watson-Crick's DNA experiment

• Lynn Margullis Endosymbiotic Theory

• Miller-Urey Experiment

• Einstein's theory of general relativity

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How are mitochondria and chloroplasts like bacteria cells?

• They divide by meiosis

• They contain their own DNA

• They have the same membrane-bound organelles

• They can make their own food

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What creature is identified as possibly the first true animal?

• Jellyfish

• Sponge

• Dinosaur

• Amoeba

What was a major achievement of the sponge in the evolution of life?

• Developing the ability to walk

• Being the first multicellular animal

• Inventing photosynthesis

• Creating the first ecosystems

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All living things contain the element(s):

• oxygen

• carbon

• hydrogen

• ALL of these

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Tiny microbes raised the level of oxygen from less than 1% to the __% it is today.

• 100

• 15

• 21

• 5

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According to chemical evolution theory, which of the following events would need to occur first for life to evolve?

• onset of photosynthesis

• origin of DNA

• synthesis of organic molecules

• formation of volcano

What was the primary goal of the Miller-Urey experiment?

• To create living cells

• To simulate early Earth conditions

• To produce complex proteins

• To discover new elements

Which molecule is considered the building block of life?

• Water

• Glucose

• Amino acids

• Carbon dioxide

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