The two word naming system that is typically used in scientific names is

Animals that possess homologous structures probably :

reflect the hierarchical classification of taxonomic groups nested within more inclusive groups.

The domain that is unique for having compartmentalized cells is the 

_______________ symmetry is the arrangement of body parts in such a way that any plane passing through the axis divides the body into mirror images. 

An organism that utilizes extracellular enzymes to digest and absorb food, multi-cellular and single-celled life cycle, and non-photosynthetic describes

 The common ancestor shared by mouse and gorilla is at point ______ on the phylogeny shown.

Formation of a distinct head is called 

After a sperm fertilizes an egg, the zygote undergoes

What type of digestive plan does this organism display?