Maslar's Classification Assessment

Word Bank

**SPECIES ** LINNAEUS ** GENUS ** CLADE**

**MORPHOLOGY ** BINOMIAL NOMENCLATURE**

In science, a universal naming system is used for all living things to avoid confusion. The scientist Carolus 1. ________________ developed a system that uses two names to identify an organism called 2. __________________________. Specifically, it uses the 3. ______________ and the 4. _______________ names. During his studies, he classified and named over 11,000 organisms. He based his classification on what an organism looks like, otherwise referred to as their 5. ________________________.

Word Bank

**PHYLOGENETIC TREES ** CLADE **CLADOGRAM**

COMMON ANCESTOR ** TAXONOMY **

While we now use genetics to classify organisms, he is still one of the most important people involved in 1. ____________________, which is the study of naming and classifying organisms. While family trees help show how people are related to each other, biologists use

2. _________________ and 3. _____________________ to illustrate relationships among organisms and evolutionary relationships for organisms with a shared 4.___________________. A 5. ____________ is a branch that consists of one ancestor and all its descendants.

Small, unicellular, no nucleus

• homology

• phylogenetics

• clade

• domain

• prokaryotes

Broadest level of classification

• homology

• phylogenetics

• clade

• domain

• prokaryotes

Evolutionary relationships among taxa

• homology

• phylogenetics

• clade

• domain

• prokaryotes

Common ancestor, divergent evolution

• homology

• phylogenetics

• clade

• domain

• prokaryotes

Branch of one ancestor and all its descendants

• homology

• phylogenetics

• clade

• domain

• prokaryotes

RELATIONSHIPS BY ANCESTRY AMONG TAXONOMIC GROUPS

• protists

• biodiversity

• phylogeny

• derived character

• taxonomy

A TRAIT THAT EVOLVED ONLY WITHIN A CERTAIN TAXA

• protists

• biodiversity

• phylogeny

• derived character

• taxonomy

SCIENCE OF DESCRIBING, NAMING AND CLASSIFYING

• protists

• biodiversity

• phylogeny

• derived character

• taxonomy