Term
|
Definition
| It shows a simple feeding relationship. |
|
|
Term
|
Definition
| It makes its own food by photosynthesis using sun’s energy (e.g. green plant). |
|
|
Term
|
Definition
| Organism which gets its energy from eating other organisms. |
|
|
Term
|
Definition
| Organism which hunts or traps other animals. |
|
|
Term
|
Definition
| Organism which is hunted or trapped by other animals. |
|
|
Term
|
Definition
| Animal which only eats plants |
|
|
Term
|
Definition
| Animal which only eats meat |
|
|
Term
|
Definition
| Animal which eats both plants and meat |
|
|
Term
| Explain “abiotic factor” and give examples |
|
Definition
| A non-living component that affects an ecosystem, e.g. rainfall, air/water/soil temperature, water/soil pH, flow rate, wind speed, light intensity. |
|
|
Term
| Explain “biotic factor” and give examples |
|
Definition
| A living component that affects an ecosystem, e.g. disease, number of predators, competition. |
|
|
Term
| What does the arrow show in a food chain/web |
|
Definition
| The direction of the flow of energy |
|
|
Term
| Where do plants get their energy from? |
|
Definition
|
|
Term
| What is lost at each level of the food chain? |
|
Definition
|
|
Term
| What is the relationship between the number of links in a food web and the stability of the ecosystem |
|
Definition
| The greater the number of links, the more stable the ecosystem |
|
|
Term
| Name 4 techniques that can be used to sample the organisms in an area? |
|
Definition
| Quadrat, pitfall trap, tree-beating and kick sampling |
|
|
Term
| How do you use a quadrat? |
|
Definition
| Randomly select site, count the number of the selected species within the boundaries of the quadrat, repeat and calculate an average. |
|
|
Term
| How do you make a pitfall trap and precautions? |
|
Definition
| Dig and place a cup levelled with the ground. Camouflage it to prevent birds from eating animals, put salty water to prevent a trapped beetle/spider from eating them all |
|
|
Term
| Material and precautions needed for kick sampling |
|
Definition
| A net, welly boots and a bucket. Place the net downstream of the stream flow, kick the river bed. |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Similar organisms which could produce fertile offspring. |
|
|
Term
|
Definition
| Organism's way of life e.g. moulds (fungi) decompose things |
|
|
Term
| Which organisms might you not collect when tree-beating? |
|
Definition
| Organisms that fly away, e.g. birds and insects. |
|
|
Term
| Instrument to measure temperature and precautions |
|
Definition
| Thermometer, make sure to wait until the reading stop changing, make sure your hand does not warm it up. |
|
|
Term
| Instrument to measure light intensity and precautions |
|
Definition
| Light meter- Make sure you are not casting a shadow on the sensor and the light meter is turned towards the sun. |
|
|
Term
| Instrument to measure moisture and precautions |
|
Definition
| Ecometer/environment meter/ moisture meter. Make sure you dry the probe between readings and that it is inserted deep enough so that the soil covers the sensor. |
|
|
Term
| Instrument to measure pH intensity and precautions |
|
Definition
| pH meter, make sure the soil is moist otherwise put a sample of soil in distilled water to measure its pH. Rinse/wipe the probe between readings. |
|
|
Term
| What are our five basic needs? |
|
Definition
| Air/oxygen, water, food, warmth and shelter. |
|
|
