1) An ______________ includes all the living and non-living things in a specific area and the interaction between them. a) Nutrition b) Ecosystem c) Food chain d) Habitat 2) One of the most important relationships between living things in an ecosystem is ________________. a) Nutrition b) Producer c) Descomponer d) Reproduction 3) Living things are linked through their food in a ___________________. a) Bacteria b) Ecosystem c) Food chain d) Habitat 4) Animals that eat plants are called ______________ a) Primary consumers or herbivores b) Secondary consumers or carnivores c) Producers d) Tertiary consumer 5) Animals that eat other animales are called _______________ a) Primary consumers b) Secondary consumers c) Descomponers 6) The plant makes its own food using the ______________ Hint: tick 3 a) Water from the soil b) Gas carbon dioxide c) Nutrients d) and sunlight e) Minerals 7) The chain usually starts with a _______________ a) Big animals and ends with a small animal b) Plant and ends with an animal c) Starts with a small animal d) plant and ends with a plant 8) Plants make their own food through a process called ________________ a) Photosynthesis b) Descomponer c) Solar energy d) Respiration 9) An example of producer is a _________________ a) Rabbit b) Tree c) Lynx 10) The lion eats other animals, it is _______________ a) Producer b) Primary consumer c) Secondary consumer 11) Biotic refers to ....... living components of a ecosystem either plants or animals. a) True b) False 12) Abiotic factors refer to non-living physical and chemical elements in the ecosystem a) True b) False 13) Examples of Abiotic factors are ..... a) plants b) fungi c) pH d) bacteria e) temperature f) N;P;K; (fertiliser) 14) Examples of biotic factors are ..... a) goat b) fungi c) pH d) bacteria e) temperature f) N;P;K; (fertiliser) 15) Tertiary consumers are the 3rd consumers a) True b) False 16) A top predator would be _________________, in a food chain a) first b) second c) third d) tertiary e) last 17) Trophic level means ........ a) what it eats b) the position an animal occupies in a food web c) where it eats d) the direction the arrow points 18) The arrow in a food chain shows 2 things .... a) the direction the animal moves b) how its is progressing c) the flow of energy in a food chain d) what eats what 19) How much energy is passed in a food chain a) 12% b) 50% c) 10% d) 80% e) 90% 20) What cell process is this energy used up in? a) Photosynthesis b) Respiration c) Egestion d) Digestion

CAX KS4 Food chains

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