Biology Trivia
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Sample Biology Quiz Questions
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These organelles, once free-living bacteria that were engulfed by early eukaryotes, now produce most of a cell's ATP through oxidative phosphorylation.
Difficulty: Easy- Mitochondria
- Ribosomes
- Golgi apparatus
- Endoplasmic reticulum
As energy climbs from one trophic level to the next, roughly this fraction is passed on, while the rest is lost mostly as heat.
Difficulty: Medium- 1%
- 10%
- 50%
- 90%
This paradox in evolutionary genetics asks how populations maintain high genetic variation despite the expected loss of variation through selection and drift.
Difficulty: Hard- Fisher's paradox
- Classical-balance debate
- Haldane's paradox
- Lewontin's paradox
These organisms thrive in environments that would kill most other life forms, such as boiling hot springs or freezing Antarctic ice.
Difficulty: Easy- Extremophiles
- Parasites
- Mammals
- Insects
This term describes the transfer of trace evidence between objects or people who come into contact, forming the basis of forensic trace analysis.
Difficulty: Medium- Trace transfer theory
- Locard's exchange principle
- Cross-contamination theory
- Evidence migration law
This enzyme relieves torsional stress in DNA by cutting and rejoining the backbone during replication and transcription.
Difficulty: Hard- Topoisomerase
- Helicase
- Gyrase
- Ligase
These intelligent marine mammals are known for their playful behavior, echolocation abilities, and living in social groups called pods.
Difficulty: Easy- Dolphins
- Manatees
- Sea lions
- Walruses
This type of mycorrhiza, common in orchids, penetrates plant root cells and forms coils inside them.
Difficulty: Medium- Ectomycorrhiza
- Arbuscular mycorrhiza
- Endomycorrhiza
- Ericoid mycorrhiza
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