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Science Revision
Question | Answer |
---|---|
What is an Ecosystem? | An ecosystem is a system of living and non-living things that interact and depend upon eachother |
What is the importance of sun to life on earth? | The sun is said to be the source of all life on earth because plants need sun for energy to make food, animals eat the plants for their energy. |
What is an abiotic factor? | non-living thing |
List examples of abiotic factors | rock, water and air |
What is a biotic factor? | living thing |
List examples of biotic factors | plants, trees and animals |
What is Gaia? | mother earth |
What is a habitat? | the place where an organism lives |
List the things organisms need in their habitats to survive | sun, water, soil and gasses. |
Write the definition of environment | describes the living and non-living thing that effect organisms in a particular place. |
What are producers? | an organism, such as a plant, that uses photosynthesis to make its own food from the suns energy. |
what is a another name for a producer? | |
What is a consumer? | an organism that relies on other organisms for its food. |
What do herbivores eat? | they eat plants |
What do omnivores eat? | eats plants and other animals |
What do carnivores eat? | eats other animals |
What type of organism always starts a food chain? | producers |
How do producers make their own food? Explain the process using a chemical word equation | carbon dioxide + water arrow with sunlight and chlorophyll. sugar (food) + oxygen |
How do consumers and producers make their energy required for growth and repair? Explain the process using a chemical word equation | |
What is a second order consumer? | |
What do decomposers do within the environment? | they break down dead and decaying matter. |
What is the definition of biodegradble? | describes substances that can be broken down easily in the environment |
What is the definition of non-biodegradable? | describes substances that can not be broken down easily in the environment. |
List the 4 main types of decomposers and what type/s of organisms they decompose | fungi, worms, bacteria and flies |
Why are decomposers called natutral recyclers? | because decomposers can usually recylce anything that was once living. |
What does competition mean? | the fight between living things for the same resource in the environment. |
What things in a habitat do animals compete for? | shelter and a mate to reproduce |
What things in habitat do plants compete for? | other animals |
What is a predator? | an animal that hunts other animals for food |
What is a prey? | an animal that is hunted by other animals for food |
Provide an example of a predator and a prey | owl and a mouce |
Describe how this predator has adapted to its role | it has very large eyes for the night and excellent hearing that helps them pin point there prey |
Describe how this prey has adapted to this role | a very close relationship between two organisms of different species. |
Why do animals need to adapt to their environment? | because they would not be fit to survive where they are. |
What is symbiosis? | a very close relationship between two organism of differnt species. |
What is commensalism? and what is an example of it | a relationship between organisms where one benifits and the other is unaffected. clown fish and sea anemones is an example. |
What is mutalism? and what is an example of it | a relationship between two different organisms in which both benifit |
What is parasitism? and what is an example of it | the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it |
What is a parasite? | an organism that lives in or on another organism. |
What is a host? | an organism that is affected by a parasite |
List the 3 types of fossil fuels | Oil, Coal and Gas |