T-/ 



TAXIS 



Directed movement by an organism in response to 

 a stimulus ; e.g., photo taxis is directed movement 

 in response to a light stimulus; thermo taxis is 

 directed movement in response to heat or cold 

 as a stimulus; etc. 



TAXON (Taxa) 



A "kind" of organism . - Any taxonomic unit or 

 category of organisms; e.g., species, genus, 

 family, order, etc. 



TAXONOMY 

 (Systematics) 



Organism classification with reference to their 

 precise relationship in the plant or animal 

 kingdom; includes the bases, principles, 

 procedures and rules of classification. 



TERRESTRIAL 



Growing, living, or peculair to the land, as 

 opposed to the aquatic environment. 



TERRITORY 



The area which an animal defends against 

 intruders. 



THERMAL 

 STRATIFICATION 



The layering of water masses owing to different 

 densities in response to temperature. The 

 condition of a body of water in which the 

 successive horizontal layers have different 

 temperatures , each layer more or less sharply 

 differentiated from the adjacent ones, the 

 warmest (or the coldest) at the top. (See 

 Overturn) 



