biosphere 3.0 / 5 based on 1 rating ? BiologyNational 5SQA Created by: caitlin farquharCreated on: 18-03-13 21:04 What is a habitat? the place where an organism lives 1 of 33 What is a population? all the organisms of one type living together 2 of 33 What is a community? two or more different types of organisms living together 3 of 33 What is the eco system? All the organisms and the non living factors make the ecosystem 4 of 33 A sampling technique used to measure the no. of daises is? a quadrat 5 of 33 A sampling technique used to measure no. of woodlice is? a pitfall trap 6 of 33 What is an abiotic factor? a non living factor which affects population 7 of 33 Give examples of abiotic factors? light intensity, moisture, PH 8 of 33 What is a biotic factor? A living factor which affects population 9 of 33 Give examples of biotic factors? Disease, food, competition 10 of 33 Competition is when... organisms require the same resources 11 of 33 What can light intensity affect? Where a plant grows 12 of 33 How can someone miss-use a quadrat? only throwing it once. placing it where they want 13 of 33 How can problems of a quadrat be solved? throw it atleast five times, randomly throw it 14 of 33 What is a producer? an organism that makes its own food by the process of photosynthesis 15 of 33 What is a consumer? An organism that eats another organism 16 of 33 What do the arrows in a food web show? the direction of energy flow 17 of 33 two ways that energy can be lost from a food web are? heat and movement 18 of 33 What does the growth of a population depend on? birth rate and death rate 19 of 33 State three factors which can limit population growth? food, disease, competition 20 of 33 Why is the nitrogen cycle important? the nutrients required for growth can be recycled 21 of 33 What happens when you remove one species from a food web? It effects other organisms 22 of 33 What is a pyramid of numbers? The no. of organisms at each level 23 of 33 What is a pyramid of biomass? The mass of organisms at each level 24 of 33 Name the environments that pollution can effect air, fresh water, sea water, land 25 of 33 What are the three main sources of pollution? domestic, agricultural, industrial 26 of 33 What is one way that pollution can be controlled? to walk instead of using cars 27 of 33 What are the organisms that feed on organic waste called? Micro organisms 28 of 33 What happens if lots of micro organisms are in water? they use up all the o2, other organisms die 29 of 33 What are examples of poor management of resources? over fishing, no crop rotation 30 of 33 What are the effects of using fossil fuels? They cause pollution and they are non renewable 31 of 33 What happens if organic waste is released into a river? - increase no. of microbes. - less o2 as they use it all up. - fish die due to lack of 02 32 of 33 What are indicator species? organisms which show the state of environment. can indicate pollution 33 of 33
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