Lektion 1 (short version) Flashcards
What is the hierarchial classification of animals called?
Taxonomy
What does phylogenetic trees show?
The patterns of evolution
what is a reliable way to make the tree of life?
By molecular phylogenies
What is monophyly
Used to describe a group of organisms that are classified in the same taxon and share the most common recent ancestor
How does evolution work (short answer)
By random variation and natural selection
What is paraphyly
Describes a grouping that consists of the groupings last common ancestor
How does different species form?
Through genetic/phenotypic changes and genetic isolation
What is convergence in evolution?
The independent evolution of similar features in species of different epochs in time
What is common ancestry
When one species is the ancestor of two or more species later in time.
At what level does evolution happen?
At the level of the gene
How does genes evolve?
By duplication and loss (orthologs and paralogs)
What doess morphological evolution result from?
The changes in gene regulatory regions
