1
Q
Define ecosystem?
A
All the living and non-living things (and the interrelationships between them) in a defined area
2
Q
Define habitat?
A
Where an organism lives
3
Q
Define population?
A
Group of organisms of the same species
4
Q
Define community
A
Group of organisms of different species
5
Q
Define niche?
A
The ‘role’/habits of an organism
For example where the organism chooses to live
6
Q
What are biotic factors - give examples?
A
Living (or once living) factors
- feeding relationships (chains/webs, producers and consumers, decomposes/detritovores)
- competition (inter and intra-specific completion)
- pathogens
7
Q
What are abiotic factors - give examples?
A
Non-living factors
- temperature
- light intensity
- oxygen + carbon dioxide concentration
- precipitation
- pH levels
- edaphic factors (factors to do with soil)
8
Q
A
A-level Biology
flashcards
Decks in class (46)
# Cards
-
2.1.1 - Cell Structure (set A - Euckaryotic Cell Organelle)46
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2.1.1 - Cell Structure (set B - Organelle Working Together)23
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2.1.1 - Cell Structure (set C - Prokaryotic Cells )18
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2.1.1 - Cell Structure (set D - Microscopes)44
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2.1.2 - Biologial Molecules (set A - Water)16
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2.1.2 - Biologial Molecules (set B - Carbohydrates)38
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2.1.2 - Biologial Molecules (set C - Lipids)34
-
2.1.2 - Biologial Molecules (set D - Proteins)33
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2.1.3 - Nucleotides and nucleic acids (set A - Nucleic acid + ATP)33
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2.1.3 - Nucleotides and nucleic acids (set B - DNA + Protein Synthesis)37
-
2.1.4 - Enzymes (set A - Enzyme Action)18
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2.1.4 - Enzymes (set B - factors affecting enzymes)43
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2.1.5 - Biologial Membranes (set A - role of membranes)42
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2.1.5 - Biological Membranes (set B- movement of molecules across membranes )45
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2.1.6 - Cell division (set A - cell cycle + Mitosis)29
-
2.1.6 - Cell division (set B - Meiosis)17
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2.1.6 - Cell division (set C - specialised cells)23
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2.1.6 - Cell division (set D - Stem cells)26
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3.1.1 - Exchange Surfaces (set A - Diffusion And Addaptions Of The Lungs)40
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3.1.1 - Exchange Surfaces (set B - Insect/fish Ventilation)31
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3.1.2 - Transport In Animals (set A - Circulatory Systems And Blood Vessels)43
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3.1.2 - Transport In Animals (set B - Mammalian Heart)40
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3.1.2 - Transport In Animals (set C - Transport Of Substances)52
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3.1.3 - Transport In Plants (set A - The Need For Transport Systems In Multicellular Plants)29
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3.1.3 - Transport In Plants (set B - Transpiration And Translocation)40
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4.1.1 - Communicable Disease (set A - Pathogens - Including Types Of Pathogens)32
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4.1.1 - Communicable Disease (set B - Defence Against Pathogens)40
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4.1.1 - Communicable Disease (set C - Preventing And Treating Disease)24
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4.2.1 - Biodiversity (set A - Types Of Biodiversity + Sampling)22
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4.2.1 - Biodiversity (set B - Factors Affecting Biodiversity + Maintaing)27
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4.2.2 - Classification And Evolution (set A - Classification Systems)20
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4.2.2 - Classification And Evolution (set B - Evidence For Evolution)36
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5.1.1 - Communication And Homeostasis15
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5.1.2 - Excretion as an example of homeostatic control55
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5.1.3 - Neuronal Control✅15
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5.1.4 - Hormonal Communication✅24
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5.1.5 - Plant And Animial Responses (set A - Plant Hormones)42
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5.2.1 - Photosynthesis (Set A - light Dependent And Independent Photosynthesis)43
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5.2.2 - Respiration✅20
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6.1.1 - Cellular Control (set A - Mutation + Gene Control)35
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6.1.2 - Patterns Of Inheritance (Set A - Variation + Inheritance)27
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6.1.2 - Patterns Of Inheritance (set B - Evolution + Speciation)30
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6.1.3 - Manipulating Genomes (set A - DNA Profiles + DNA Sequencing)26
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6.1.3 - Manipulating Genomes (set B - Genetic Engineering)6
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6.3.1 - Ecosystems8
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6.2.1 - Cloning And Biotechnology3
