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11 Questions

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Introduction to Biology and Abiogenesis

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Questions and Answers

Which of the following is NOT a key characteristic of the Miller-Urey experiment?

It used electric sparks to mimic lightning in the early Earth's atmosphere.

It showed that DNA was the key molecule responsible for the origin of life on Earth. (correct)

It demonstrated that organic compounds could form spontaneously under early Earth conditions.

It generated amino acids and sugars from a simulated early Earth atmosphere.

Which level of biological organization is MOST directly responsible for maintaining homeostasis in an organism?

Organ system level

Tissue level

Organismal level (correct)

Cellular level

Which component of a microscope is responsible for controlling the intensity of light reaching the specimen?

Condenser lens

Diaphragm (correct)

Objective lens

Eyepiece

What is the main role of DNA?

To store information on how other molecules should be arranged. Signup and view all the answers

What is the difference between organic compounds and inorganic compounds, as mentioned in the text?

Organic compounds contain carbon, while inorganic compounds do not. Signup and view all the answers

What is the role of mineral crystals in clay, as proposed by Cairns-Smith?

All of the above. Signup and view all the answers

Which of the following is NOT a characteristic of people being warm-blooded organisms?

They have blood. Signup and view all the answers

What is the relationship between the Miller-Urey experiment and the origin of life on Earth, as suggested in the text?

The experiment showed that organic compounds could form spontaneously under early Earth conditions. Signup and view all the answers

Which of the following is NOT a mechanism proposed in the text for how the first molecules of life might have formed?

Organization of organic molecules into patterns by mineral crystals in clay. Signup and view all the answers

What is the relationship between DNA and the organization of molecules, as discussed in the text?

DNA stores information on how amino acids should be arranged in proteins, which is its main role. Signup and view all the answers

What is the relationship between the rocky nooks on the early Earth and the formation of the first molecules of life?

The rocky nooks concentrated organic molecules together and provided mineral catalysts for critical reactions. Signup and view all the answers