Nectary 



A gland in a flower or on a vegetative organ that pro- 

 duces nectar. 



Nekton 



The strong-swimming animals in water, e. g., fish. cf. 

 Benthos, Plankton. 



Nematode 



An animal in the class Nematoda, phylum Nemathel- 

 minthes, e. g., hookworm, eelworm in potatoes. 



Nee-Darwinism 



The doctrine of modern evolution that combines Gen- 

 etics with Natural selection (q. v.). 



Neogea 



The faunal realm, containing only one region, the Neo- 

 tropical which includes South and Central America and the 

 tropical parts of Mexico, cf. Megagea, Notogea. 



Neo-Lamarckism 



The theory of evolution that includes modern-day modi- 

 fications of the doctrines of Lamarckism (q. v.). 



Neolithic 



The cultural stage, beginning about ten thousand years 

 ago, in human history, following the Paleolithic, during 

 which cultivation of plants and domestication of animals 

 were started. 



Neoplasm 



An abnormal increase in the number of cells in some 

 part of an organism, often malignant. 



Neoteny 



The occurrence of larval or other juvenile characters in 

 the adult stage of an organism, or the presence of an adult 

 character in the larval stage, e. g., larval form of the adult 



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