Podcast
Questions and Answers
Which of the following is NOT a key characteristic of the Miller-Urey experiment?
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?
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?
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?
What is the main role of DNA?
What is the difference between organic compounds and inorganic compounds, as mentioned in the text?
What is the difference between organic compounds and inorganic compounds, as mentioned in the text?
What is the role of mineral crystals in clay, as proposed by Cairns-Smith?
What is the role of mineral crystals in clay, as proposed by Cairns-Smith?
Which of the following is NOT a characteristic of people being warm-blooded organisms?
Which of the following is NOT a characteristic of people being warm-blooded organisms?
What is the relationship between the Miller-Urey experiment and the origin of life on Earth, as suggested in the text?
What is the relationship between the Miller-Urey experiment and the origin of life on Earth, as suggested in the text?
Which of the following is NOT a mechanism proposed in the text for how the first molecules of life might have formed?
Which of the following is NOT a mechanism proposed in the text for how the first molecules of life might have formed?
What is the relationship between DNA and the organization of molecules, as discussed in the text?
What is the relationship between DNA and the organization of molecules, as discussed in the text?
What is the relationship between the rocky nooks on the early Earth and the formation of the first molecules of life?
What is the relationship between the rocky nooks on the early Earth and the formation of the first molecules of life?
