Genetics and Variation - Biodiversity: Key Terms Flashcards

1
Q

Binomial system

A

The system of naming species

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2
Q

Classification

A

The grouping of organisms

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3
Q

Taxonomy

A

The theory and practice of classification

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4
Q

Artificial classification

A

Classification that divides organisms according to differences that are useful at the time, e.g. colour

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5
Q

Phylogenetic classification

A

Based upon evolutionary relationships between organisms and their ancestors

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6
Q

Phylogeny

A

The evolutionary relations between organisms and their ancestors

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7
Q

Biodiversity

A

The general term used to describe variety in the living world

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8
Q

Species diversity

A

Refers to the number of different species and the number of individuals of each species within one community

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9
Q

Genetic diversity

A

Refers to the variety of genes possessed by the individuals that make up the population of a species

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10
Q

Ecosystem diversity

A

Refers to the range of different habitats from a small local habitat to the whole of the Earth

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11
Q

Species richness

A

The number of different species in a particular area at a given time

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12
Q

Habitat

A

The place where an organism normally loves and which is characterised by physical conditions and the types of other organisms present

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13
Q

Interspecific variation

A

When one species differs from one species to another

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14
Q

Intraspecific variation

A

When members of the same species differ from each other

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15
Q

Mean

A

An average value of data

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16
Q

Standard deviation

A

The distance from the mean to the point where the curve changes