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Edexcel Biology Gcse - Adaptations, Interdependence, and Competition Part 1

Biology25 CardsCreated about 1 month ago

This deck covers key definitions and concepts related to adaptations, interdependence, and competition within ecosystems, as outlined in the Edexcel Biology GCSE curriculum.

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abiotic definition

Non-living elements of an ecosystem, such as climate, temperature, water, and soil type.
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Key Terms

Term
Definition
abiotic definition
Non-living elements of an ecosystem, such as climate, temperature, water, and soil type.
biotic definition
Living elements of an ecosystem, such as plants and animals.
community definition
All the organisms that live in a habitat (plants and animals).
competition definition
The interaction between organisms after the same limited resources.
deficiency definition
In the diet, a deficiency happens if there is too little of a particular nutrient.
ecosystem definition
The living organisms in a particular area, together with the non-living components of the environment.
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Edexcel Biology Gcse - Adaptations, Interdependence, and Competition Part 1
TermDefinition
abiotic definition
Non-living elements of an ecosystem, such as climate, temperature, water, and soil type.
biotic definition
Living elements of an ecosystem, such as plants and animals.
community definition
All the organisms that live in a habitat (plants and animals).
competition definition
The interaction between organisms after the same limited resources.
deficiency definition
In the diet, a deficiency happens if there is too little of a particular nutrient.
ecosystem definition
The living organisms in a particular area, together with the non-living components of the environment.
environment definition
All the conditions that surround any living organism - both the other living things and the non-living things or physical surroundings.
food chain definition
A sequence (usually shown as a diagram) of feeding relationships between organisms, showing which organisms eat what and the movement of energy through trophic levels.
interdependence definition
Refers to the fact that all organisms that live in an ecosystem depend upon each other, for food, protection, shelter, etc, in order to survive.
interspecific competition definition
The competition which occurs between organisms of different species for a common resource.
intraspecific competition definition
The competition between organisms within the same species.
life processes definition
The key reactions that all living organisms complete.
mutualism definition
Mutualism is a relationship between two organisms of different species in which each individual benefits from the activity of the other.
optimum definition
The best or most appropriate - for instance, the conditions under which an enzyme works best (eg temperature and pH).
parasitism definition
Parasitism is a non-mutual relationship between species where the parasite benefits at the expense of the host.
population definition
All of the members of a single species that live within a geographical area.
predation definition
Hunting and killing prey animals.
quadrat definition
A square frame of known area used for sampling the abundance and distribution of slow or non-moving organisms.
respire definition
To engage in respiration, the energy-producing process inside living cells.
species definition
A type of organism that is the basic unit of classification. Individuals of different species are not able to interbreed successfully.
transect definition
A line created, for instance, with a tape measure, along which sampling occurs.
yield definition
The mass of product made in a chemical reaction. The percentage yield is a measure of the yield obtained compared to the maximum possible yield.
Levels of organisation within an ecosystem Producer
Producers are plants and algae, which photosynthesise.
Levels of organisation within an ecosystem Primary consumer
Primary consumers are herbivores, which eat producers.
Levels of organisation within an ecosystem Secondary consumer
Secondary consumers are carnivores, which eat primary consumers.