1. Which species of comb jelly was discovered to have the ability to reverse its aging process?
1) Turritopsis dohrnii
2) Hydra vulgaris
3) Mnemiopsis leidyi
4) Aurelia aurita
Answer: 3
2. Who made the initial discovery of the comb jelly’s reverse aging ability?
1) Joan J Soto-Angel
2) Charles Darwin
3) Jacques Cousteau
4) Marie Curie
Answer: 1
3. How old are comb jellies believed to be in evolutionary history?
1) 100 million years
2) 500 million years
3) 700 million years
4) 1 billion years
Answer: 3
4. Which other species is mentioned as having similar reverse development abilities?
1) Moon jellyfish
2) Turritopsis dohrnii
3) Sea anemone
4) Box jellyfish
Answer: 2
5. Where does Joan J Soto-Angel conduct his research?
1) University of Oslo
2) University of Copenhagen
3) University of Bergen
4) University of Stockholm
Answer: 3
6. What triggered the reverse aging process in the experimental studies?
1) Extreme stress
2) Temperature changes
3) Chemical exposure
4) Light changes
Answer: 1
7. What stage did the adult comb jellies revert to?
1) Embryonic stage
2) Larval stage
3) Juvenile stage
4) Pre-adult stage
Answer: 2
8. What changed in the comb jellies during the regression process?
1) Only physical characteristics
2) Only feeding behavior
3) Both physical characteristics and feeding behavior
4) Neither physical characteristics nor feeding behavior
Answer: 3
9. What is the common name for Turritopsis dohrnii?
1) Eternal jellyfish
2) Immortal jellyfish
3) Forever jellyfish
4) Ageless jellyfish
Answer: 2
10. What field of study could benefit from this discovery?
1) Astronomy
2) Geology
3) Developmental biology
4) Physics
Answer: 3
11. How was the initial discovery made?
1) Through planned experiments
2) Through field observation
3) Through unexpected lab observation
4) Through computer simulation
Answer: 3
12. What aspect of the comb jelly will be important for future studies?
1) Its color changes
2) Its nerve net
3) Its swimming patterns
4) Its reproduction rate
Answer: 2
13. What does this discovery challenge?
1) Evolution theory
2) Marine biology basics
3) Traditional views on animal life cycles
4) Ocean current patterns
Answer: 3
14. What is one potential application of this research?
1) Space exploration
2) Medicine
3) Agriculture
4) Climate science
Answer: 2
15. How long did the regression process take?
1) Several hours
2) Several days
3) Several weeks
4) Several months
Answer: 3
16. What type of institution is the University of Bergen?
1) American
2) British
3) Swedish
4) Norwegian
Answer: 4
17. What does this discovery suggest about regenerative capabilities?
1) They are rare in nature
2) They are more widespread than previously thought
3) They only exist in jellyfish
4) They are declining in modern species
Answer: 2
18. What kind of changes were observed in the comb jellies?
1) Behavioral only
2) Physical only
3) Neither behavioral nor physical
4) Both behavioral and physical
Answer: 4
19. What is the main focus of future research regarding this discovery?
1) Molecular mechanisms
2) Color patterns
3) Migration patterns
4) Reproductive cycles
Answer: 1
20. What makes comb jellies particularly valuable for studying evolution?
1) Their size
2) Their color
3) Their age as a species
4) Their habitat
Answer: 3
21. What aspect of biology does this discovery primarily relate to?
1) Photosynthesis
2) Aging processes
3) Digestion
4) Reproduction
Answer: 2
22. What type of animal is Mnemiopsis leidyi?
1) Fish
2) Mollusk
3) Comb jelly
4) Crustacean
Answer: 3
23. What will researchers study to understand the de-aging process?
1) DNA sequences
2) Molecular mechanisms
3) Cell division
4) All of the above
Answer: 2
24. Where was the initial observation made?
1) In the ocean
2) In a laboratory
3) In an aquarium
4) In a river
Answer: 2