Document page
biology 0610printed 5 · PDF 5
328 pagesrevision 46933
printed 5 · PDF 5
Page image rendered from the stored file at 110 dpi; it sharpens as you zoom. Outlines are placed from each region’s stored position on the page (612 × 792 pt).
no text layerread by OCR (tesseract5-eng@250dpi)The text layer was unusable, so the page image was read by OCR. OCR text can contain misread characters.
Source of this text: read by OCR. The better of the embedded text and OCR is kept.
1.2 Concept and uses of classification systems
Core
1. State that organisms can be classified into groups
by the features that they share
2 Describe a species as a group of organisms that
can reproduce to produce fertile offspring
3 Describe the binomial system of naming species
as an internationally agreed system in which the
scientific name of an organism is made up of two
parts showing the genus and species
4 Construct and use dichotomous keys based on
identifiable features
Supplement
Explain that classification systems aim to reflect
evolutionary relationships
Explain that the sequences of bases in DNA are
used as a means of classification
Explain that groups of organisms which share a
more recent ancestor (are more closely related)
have base sequences in DNA that are more
similar than those that share only a distant
ancestor