Classification and Systematics (Cladistics download (Cladogram Style…
Classification and Systematics
Levels of Taxonomic categories.
Genera are natural.
All descendants of that common ancestor are in the same genus.
All of species included in the genus are related to each other by a common ancestor.
Binomial system of nomenclature
The basis of our present.
Very species have both a genus name.
the study of heredity and the variation of inherited characteristics.
A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction.
As similar as possible to the type specimen.
Sent to many herbaria around the world.
prevent a recurrence of disaster.
Alternative methods of classification.
Combine the feature of both natural and artificial systems.
Structure are classified together.
All fossils with the same basic form.
Mainly for fossil organisms.
Third type of classifications.
Artificial systems of classifications.
on the basis of normal classifications.
Its easier to observe the characters.
Way to analyze the phylogenetic relationship.+
character shared by a set of species but not present in their common ancestor.
Hypothesis wont be complicated as it need to be.
Have two branches
White flowers with derives conditions.
Flowers with red color
Every branches extending from the particular point represent the descendants of the original group.
Divergence of one taxon into two.
Diagram that helps to show the evolutionary patterns using the series of branches.
Cladograms and Taxonomic Categories
Reflect the relationships.
Goal of modern plant.
knowing of evolutionary lines.
Phylogeny refers to the evolutionary history of a taxonomic group of organisms.
The evolutionary development or history of a species or of a taxonomic group of organisms.
Binomial system of classification
this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.
classifying and naming organisms
Lineage of Evolution
All organisms are grouped into three domains.
Gram Negative Bacteria
Gram positive bacteria
Nearly 400 millions years ago.
Clade of true plants were established.
Some of them adapted to land.
Algae were of diverse group.
Protistans with low level of evolutionary advancement.
Opposed by Clade.
Protistans with old classifications.