GLOSSARY 329 



genus, je'nus (L. genus, race), a group containing one or more species, 

 geotropism, jeot'ropizm (Gr. gea, earth; trope, a turning), reaction to 



gravity. 



germ cell, jerm' sel (L. germen, bud ; cella, store room), a reproductive cell, 

 germ layer, jerm' Id'er (L. germen, bud), one of the fundamental embryonic 



membranes from which the organs of the body arise, 

 germ plasm, jerm'pla'zm (L. germen, bud ; Gr. plasma, a thing molded) 



the protoplasm of the germ cells. 

 gullet, gufet (Y.goule, mouth), something resembling the throat in shape 



position, or functions. 

 gynandromorph, ji nan'dro mdrf (Gr. gunandros, of doubtful sex ; morpht. 



form), an animal with both male and female characters. 



haemoglobin, hem oglo'bin (Gr. haima ; L. globus, ball), the red coloring 



matter in the blood of certain animals. 



hepatic, hepat'ik (Gr. hepar, liver), of or pertaining in any way to the liver, 

 heredity, he retfiti (L. heres, an heir), the resemblance of child to parent. 

 hermaphrodite, her maf'ro dit (Gr. Hermes, the god mercury; Aphrodite, the 



goddess Venus), an animal possessing the reproductive organs of both 



male and female. 

 heterOHiOrphosis, het'e ro morf'o sis (Gr. heteros, different; morphe, form), in 



regeneration, the production of a new part unlike that removed, 

 histology, his tot 5 ji (Gr. histos, tissue; logos, discourse), the study of the 



microscopic structure of tissues, 

 holoblastic, hold bias 1 tik (Gr. holes, whole; blastos, germ), applied to eggs 



with total cleavage, 

 holophytic, hold fit 1 ik (Gr. holos, whole; phuton, a plant), resembling a plant 



in mode of nutrition. 



holozoic, hoi o zo'ik (Gr. holos, whole ; zoon, an animal), resembling an ani- 

 mal in mode of nutrition. 

 homologous, homoVogus (Gr. homos, VAae; logos, speech), having the same 



relative position or structure, i.e. anatomically similar. 

 Hydra, hi dr'd (L. hydra, a water snake), a genus of fresh water polyps, 

 hypodermis, hy po der'mis (Gr. hupo, under ; derma, skin), the layer of cells 



just below the cuticle of certain animals, 

 hypostome, hi'postom (Gr. httpo, under ; stoma, a mouth), a structure near 



the mouth of certain coelenterates and crustaceans. 



ingestion, injes'chon (L. ingestus, poured into), the introduction of food into 



the body. 

 interstitial, in ter stish' al (L. inter, between ; sisto, I stand), pertaining to 



pr situated in an intervening space. 



