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GLOSSARY 



anaphase, an'afdz (Gr. ana, back or again), the later period of mitosis 



during the divergence of the daughter chromosomes. 

 anatomy, a nat'omi (Gr. anatemno, to cut up), the study of the structure of 



organisms as made out by dissection. 

 Annelida, a nel'idd (L. annellus, a little ring; Gr. eidos, resemblance), a 



phylum of animals having bodies made up of many small rings. 

 antenna, an ten! a (L. antenna, a sail yard), the jointed feelers upon the 



heads of insects and crustaceans. 

 antennule, anten'til (L. dim. of antenna), the smaller pair of antennae in 



the crustaceans. 



anus, d'nus (L. anus, a ring), the orifice through which the refuse of diges- 

 tion is voided. 



Apis, d'pis (L. apis, a bee), a genus of bees. 

 archenteron, arken'teron (Gr. arche, beginning; enferon, intestine), the 



primitive digestive cavity. 

 arthrobranchia, dr thro brang'ki a (Gr. arthron, a joint ; brangchia, the gill 



of a fish), part of the respiratory system of the crayfish. 

 Arthropoda, dr throp'od'd (Gr. arthron, a joint ; pous, foot), a phylum of 



animals having bodies composed of segments, some or all of which bear 



jointed appendages. 

 Ascaris, as'ka ris (Gr. askaris, a worm in the intestines), a genus of round 



worms. 

 asexual, asek'sual (Gr. a, without; and sexual}, applied to modes of 



reproduction in which the sexes are not concerned. 

 assimilatii)n ; asim ild'shon (L. assimilo, to make like), the conversion of 



digestec 1 ood into living protoplasm. 

 aster, as'ter ( k Gr. aster, a star), the star-shaped structure surrounding the cen- 



trosome. 

 auditory, flditd ri (L. auditor, a hearer), pertaining to the sense of hearing. 



behavior, behdv'yor (be, about; habban, hold, have), the sum total of all 

 the various movements of an animal. 



bilateral, bilaferal (L. bis, twice; lateris, of a side), having the sides sym- 

 metrical. 



biogenesis, btojen'esis (Gr. bios, life ; genesis, origin), the genesis of living 

 beings from living beings. 



biology, bi otoji (Gr. bios, life ; logos, discourse), the science of life and liv- 

 ing things. 



biramous, fora'mus (L. bi, two; ramus a branch), dividing into two 

 branches. 



blastOC03l s blas ! tosel (Gr. blastos, a bud ; koilos, a hollow), the cavity of the 

 blastula. 



