A
________ are the ratios of alleles within a population.
Allele frequencies
Relative fitness measures ________ in relation to others of the same population.
the actual contribution of offspring to the next generation
Heritability refers to ________.
the phenotypic variation due to genetic differences
it's a diagram used to reflect evolutionary relationships among organisms or groups of organisms.
phylogenetic tree
Historically, early scientists organized life on planet earth into a layered hierarchy, with large and "important" organisms being grouped together at the top. Nowadays though, as technology and research methods have progressed, scientists have adopted a different classification system that allows them to group species into increasingly specific categories by studying their evolutionary relationships. Scientists use ___________ to help map and reflect evolutionary relationships among organisms.
phylogenetic trees
Gerold is looking at a phylogenetic tree documenting the evolutionary relationships of primates. The phylogenetic tree possesses a _____ which allows him to identify a common ancestor of all the other species that are found on the branched tree.
root
Jayde is going to be doing an activity where she has to draw the phylogenetic relationship between various plants. What are some limitations to her drawing a phylogenetic tree to show the evolutionary relationship between these plants?
The tree will not account for the length of time between the evolution of different species.
it's the science of classifying organisms to construct internationally shared classification systems with each organism placed into more and more inclusive groupings.
Taxonomy
Scientists generally refer to an organism only by its genus and species, which is its two-word scientific name, in what is called____________.
binomial nomenclature
The name at each level is also called a___________.
taxon
Binomial nomenclature is based on information that can be derived from the taxonomic classification system of species. If you were to discover a new species of primate you would name it by first using the ________ followed by the ________ taxon.
Genus, Species
can be read like a map of evolutionary history.
A phylogenetic tree
The branches in phylogenetic trees ________.
indicate evolutionary order
Phylogenetic trees _______.
show the evolutionary connections among organisms
A ________ in a phylogenetic tree represents when a single lineage split into a distinct new one.
branch point
The Linnaean taxonomic system is ________.
fluid