Unit 8: Ecology (part 2)
16 review questions with answers for Unit 8: Ecology (part 2). Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Interconnected food chains showing complex feeding relationships?
- 10% Rule
- Food WebRight answer
- Trophic Levels
- Nitrogen Fixation
All 16 questions and answers
Interconnected food chains showing complex feeding relationships?
Answer: Food Web
The concept that only about 10% of energy transfers to the next trophic level?
Answer: 10% Rule
Total energy captured by producers through photosynthesis?
Answer: Gross Primary Productivity (GPP)
GPP minus the energy used by producers for respiration?
Answer: Net Primary Productivity (NPP)
Feeding positions in a food chain, such as producers and primary consumers?
Answer: Trophic Levels
In a food chain diagram, what represents the direction of energy transfer?
Answer: Arrows
Process where CO₂ is fixed by photosynthesis and released by respiration and combustion?
Answer: Carbon Cycle
Process where N₂ is fixed by bacteria, assimilated by plants, and returned to the atmosphere?
Answer: Nitrogen Cycle
The conversion of N₂ gas into ammonia by bacteria like Rhizobium?
Answer: Nitrogen Fixation
The conversion of nitrates back into N₂ gas by anaerobic bacteria?
Answer: Denitrification
Atmospheric gases trapping heat, enhanced by increased CO₂ from fossil fuels?
Answer: Greenhouse Effect
Excess nutrients (N, P) causing algal blooms and oxygen depletion in water?
Answer: Eutrophication
The accumulation of toxins in an organism's tissues over time?
Answer: Bioaccumulation
The increasing concentration of toxins at higher trophic levels?
Answer: Biomagnification
Non-native species that spread rapidly and disrupt local ecosystems?
Answer: Invasive Species
The variety of life at genetic, species, and ecosystem levels?
Answer: Biodiversity
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.