Problem:OPTIONS:
- time consumption
- era
- life span
- life cycle

Q: What is the term for the span in the life of an organism from one generation to the next? A:
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A: life cycle

Problem:OPTIONS:
- testes
- sperm
- fetus
- egg

Q: In mammals what does the zona pellucida protect? A:
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A: egg

Problem:OPTIONS:
- chloroplasts
- lucoplasts
- cytoplasm
- chromoplasts

Q: What are plastids that contain other pigments? A:
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A: chromoplasts

Problem:OPTIONS:
- potential energy
- thermodynamic energy
- kinetic energy
- solar energy

Q: What is energy from the sun called? A:
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A:
solar energy