The cards Question What is an ecosystem? Tap to flip Answer All the living organisms in a place, interacting with each other and with their non-living surroundings. Question Why are the organisms in an ecosystem interdependent? Tap to flip Answer They depend on each other for the things they need to survive. Question What is a producer? Tap to flip Answer An organism that makes its own food. Question What is cellular respiration? Tap to flip Answer A chemical process in which food is used as a fuel to provide energy for life processes. Question What do decomposers do? Tap to flip Answer They help break down dead organic material, so nutrients can be recycled in ecosystems. Question What do all organisms depend on producers for? Tap to flip Answer Making the food that moves through food chains. Question What is a trophic level? Tap to flip Answer The position of an organism in a food chain. Question What does a pyramid of number show? Tap to flip Answer The total number of organisms at each trophic level in a food chain. Question What is a herbivore? Tap to flip Answer An animal that eats only plants (producers). Question What is a carnivore? Tap to flip Answer An animal that eats other animals (consumers). Question What is an omnivore? Tap to flip Answer An animal that eats both plants (producers) and other animals (consumers). Question What do food chains show? Tap to flip Answer The feeding relationships between organisms and the flow of energy through a habitat. Question Which organism goes at the bottom of a pyramid of number? Tap to flip Answer The producer. Question Must organisms get bigger at each trophic level of a food chain? Tap to flip Answer No. Some producers are larger organisms that are eaten by smaller organisms, giving an inverted pyramid of number. Question What is biomass? Tap to flip Answer The mass of living material in one or more organisms. Question What does a pyramid of biomass show? Tap to flip Answer The biomass of organisms at each trophic level in a food chain. Question What do the scaled bars in a pyramid of biomass represent? Tap to flip Answer The total mass of organisms at that level within a habitat. Question Which organism goes at the bottom of a pyramid of biomass? Tap to flip Answer The producer. Question How does biomass change from one trophic level to the next, up a food chain? Tap to flip Answer It decreases. Question What is biodiversity? Tap to flip Answer The range of different living species that live in a place. Question What is an adaptation? Tap to flip Answer A feature that organisms have to help them live in a particular place. Question What is extinction? Tap to flip Answer The permanent loss of a species. Question What is conservation? Tap to flip Answer The process of protecting biodiversity and the environment. Question Give one example of a physical adaptation in plants. Tap to flip Answer e.g. shallow roots, deep roots, or spines to deter consumers. Question Give an example of a behavioural adaptation in plants. Tap to flip Answer e.g. growing towards light. Question Give an example of a physical adaptation in animals. Tap to flip Answer e.g. thick fur. Question Give an example of a behavioural adaptation in animals. Tap to flip Answer e.g. being nocturnal. Question What is a quadrat? Tap to flip Answer A square frame used to sample populations of plants or slow-moving animals. Question What is a pooter used for? Tap to flip Answer Sucking up small animals to sample them. Question What is a pitfall trap used for? Tap to flip Answer Sampling small animals that live on the ground. Question What is mark-release-recapture used for? Tap to flip Answer Estimating the number of individuals in a population. Question Why is sampling used to estimate populations in an area? Tap to flip Answer Because it would be impossible to count them all. Question Why is sampling essential for conservation? Tap to flip Answer It lets populations be monitored and compared. Question Give an example of sedentary animals that can be sampled with a quadrat. Tap to flip Answer e.g. barnacles or limpets on a rocky shore. Question What is a species? Tap to flip Answer A group of organisms that can reproduce with each other to produce offspring that can also reproduce. Question In science investigations, what is bias? Tap to flip Answer When the person carrying out an investigation affects its outcome. Question Why is most quadrat sampling done at random? Tap to flip Answer To avoid bias in the results. Question What is a gene bank? Tap to flip Answer A store of genetic material for future use, e.g. collections of seeds or stores of plant and animal cells. Question What is a gene pool? Tap to flip Answer The range of DNA in a species. Question How does the size of a species' gene pool affect it? Tap to flip Answer The larger the gene pool, the more easily the species can adapt to changes to its habitat. Question What does DNA stand for? Tap to flip Answer Deoxyribonucleic acid. Question Why is biodiversity important for habitats? Tap to flip Answer It helps to maintain healthy habitats. Question Give one way biodiversity can be maintained. Tap to flip Answer e.g. conservation, protection or gene banks. Question Give one example of small-scale biodiversity conservation. Tap to flip Answer e.g. providing habitats in gardens and urban areas, or storing seeds and embryos. Where this deck sits in the curriculum Curriculum National Curriculum for England Stage Key stage 3 (Years 7–9) Course KS3 Science Unit Biodiversity England's National Curriculum sets what is taught; the units and their order are Oak National Academy's. Flash Feed is not affiliated with Oak or any exam board.
How this deck was checked On 2026-11-02, every card was compared with its source: the lessons of Oak National Academy, a public body funded by England's Department for Education that publishes lessons for the national curriculum. Because the cards come from those lessons, no second source was sought. The comparison was done automatically, not by a teacher, so a card can still be wrong. Flash Feed is not affiliated with any source named here.
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A Science lesson by Oak National Academy licensed under Open Government Licence (OGL)
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