Podcast
Questions and Answers
What is the primary characteristic used to distinguish living from non-living things?
What is the primary characteristic used to distinguish living from non-living things?
- Growth over time
- Molecular movement (correct)
- Visible movement
- Green color in plants
Which of the following statements is true about viruses?
Which of the following statements is true about viruses?
- Viruses are classified as living beings by all biologists
- Viruses are undoubtedly alive
- Viruses do not show molecular movement until they infect a cell (correct)
- Viruses exhibit visible growth
Why is visible movement alone not a sufficient characteristic to define life?
Why is visible movement alone not a sufficient characteristic to define life?
- Some animals can breathe without visible movement
- Plants with non-green leaves would be considered non-living
- Molecular movements are not visible to the naked eye
- All of the above (correct)
What is the primary reason for the controversy surrounding the classification of viruses as living beings?
What is the primary reason for the controversy surrounding the classification of viruses as living beings?
Which of the following is NOT considered evidence for life?
Which of the following is NOT considered evidence for life?
In multi-cellular organisms, why is simple diffusion not sufficient to meet the requirements of all cells?
In multi-cellular organisms, why is simple diffusion not sufficient to meet the requirements of all cells?
What creates the need for a transportation system in multi-cellular organisms?
What creates the need for a transportation system in multi-cellular organisms?
Why do multi-cellular organisms require a transportation system for food and oxygen?
Why do multi-cellular organisms require a transportation system for food and oxygen?
What is the purpose of excretion in organisms?
What is the purpose of excretion in organisms?
Why do multi-cellular organisms need to discard waste by-products outside the body?
Why do multi-cellular organisms need to discard waste by-products outside the body?
What is the main purpose of life processes?
What is the main purpose of life processes?
Why is energy from outside sources necessary for organisms?
Why is energy from outside sources necessary for organisms?
What is the primary reason for the need for additional raw materials from outside the organism?
What is the primary reason for the need for additional raw materials from outside the organism?
Why are oxidizing-reducing reactions commonly used by organisms?
Why are oxidizing-reducing reactions commonly used by organisms?
What is the primary reason for the need for organisms to convert energy from food sources into a uniform source of energy?
What is the primary reason for the need for organisms to convert energy from food sources into a uniform source of energy?
