B2 Glossary AW Word Scramble

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Term	Definition
Adaptation	Features that organisms have to help them survive in their environment.
Algal bloom	A thick mat of algae near the surface of water which stops sunlight getting through.
Amphibians	Animals with a moist permeable skin.
Binomial system	The scientific way of naming an organism.
Bidegradable	A biodegradable material can be broken down by micro-organisms.
Biomass	Waste wood and other natural materials which are burned in power stations.
Birds	Animals that have feathers.
Captive breeding	Breeding a species in zoos to maintain the wild population.
Carbon cycle	A natural cycle through which carbon moves by respiration, photosynthesis, and combustion in the form of carbon dioxide.
Carbon dioxide	Gas present in the atmosphere at a low percentage but important in respiration, photosynthesis and combustion.
Carbon footprint	The total amount of greenhouse gases given off by a person in a given time.
Carnivore	An animal that eats other animals.
Conservation	A way of protecting a species or environment.
Consumer	Organism in a food chain that gets its energy from eating food.
Cyclic fluctuation	The rise and fall of a population.
Decay	To rot.
Decomposer	Organisms that break down dead animals or plants.
Deforestation	Removal of large area of trees.
Denitrifying-bacteria	Bacteria that convert nitrates into nitrogen gas.
Diet	What a person eats.
Ecological niche	The role of an organism within an ecosystem.
Egestion	The way an animal gets rid of undigested food waste called faeces.
Endangered	A species where the numbers are so low they could become extinct.
Eutrophication	When waterways become too rich with nutrients (from fertilisers) which allows algae to grow wildly and use up all the oxygen.
Evolution	The gradual change of in organisms over millions of years caused by random mutations and natural selection.
Excretion	The process of getting rid of waste from the body.
Exponential growth	The ever increasing growth of the human population.
Extinct	When all members of a species have died out.
Finite resource	Resources such as oil which will eventually run out.
Fish	Animals with scales and gills.
Food	Part of out diet that provides energy.
Habitat	The place where an organism lives.
Herbivore	Animals that eat plants.
Hybrid	The infertile offspring produced when two animals of different species breed.
Indicator species	Organisms used to measure the level of pollution in water or air.
Invertebrate	Animal without a backbone.
Legume	A plant that has bacteria inside root nodules that provide the plant with nitrates.
Mammal	Animals that have fur and produce milk for their young.
Microbe	Very small organism (living thing) which can only be viewed through a microscope- also known as a micr-organism.
Micro-organism	Very small organism (living thing) which can only be viewed through a microscope- also known as a microbe.
Mutation	Where the DNA within cells have been altered (this happens in cancer).
Mutualism	A relationship in which both organisms benefit.
Natural selection	Process by which “good” characteristics that can be passed on in genes become more common in a population over many generations (“good” characteristics mean that the organism has an advantage which makes it more likely to survie).
Nitrifying-bacteria	Bacteria that convert ammonia into nitrates.
Nitrogen-fixing bacteria	Bacteria that convert ammonia into nitrates.
Nitrogenous fertiliser	A fertiliser which contains a nitrogen compound.
Omnivore	Animal that eats plants and other animals.
Parasite	Organism which lives on (or inside) the body of another organism.
Photosynthesis	Process carried out where carbon dioxide and water, in the presence of sunlight, produce glucose and oxygen.
Phototropism	A plant’s growth response to light.
Pollination	The process of transferring pollen from one plant to another.
Population	The number of one species in a habitat.
Predator	Animal which preys on (and eats) another animal.
Prey	Animals which are eaten by predators.
Producers	Organisms in a food chain that make food using sunlight.
Recycle	To reuse materials.
Reptile	Cold blooded vertebrates having an external covering of scales or horny plates.
Respiration	Process occurring in living things where oxygen is used to release the energy in foods.
Species	Basic category of biological classification, composed of individuals that resemble one another, can breed amongst themselves, but cannot breed with members of another species.
Sustainable development	Managing a resource so that it does not run out.
Trophic level	The stages in a food chain.
Variation	The differences between individuals (because we all have slight variation in our genes).
Vegan	A type of diet/a person who does not eat animals or animal products.
Vegetarian	A type of diet/a person who does not eat meat or fish.
Vertebrate	Animal with a backbone.

Created by: Brimsham

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