388 BIOLOGY 



alternation of generations, in animals, 277, in plants, 269, 273. 



amitosis (Gr. a = without + mitos = thread). Cell division without 

 karyokinesis, 89. 



Amoeba, description of, 52. 



amoeboid (Gr. amoeba -\- -oid). Resembling Amoeba, especially as regards 

 movements by the protrusion of pseudopodia, 218. 



amorphous (Gr. a = without -+- morphe = form). Without regular 

 shape. 



amphiaster (Gr. amphi = around 4- aster = star). The double star formed 

 in karyokinesis, 86. 



amphibious (Gr. amphi = around + bios = life). Capable of living either 

 in the air or in the water. 



amphimixis (Gr. amphi = around + mixis = a mixing). A name applied 

 to the mixture of germ substance in sexual union, 336. 



amylopsin. A ferment found in the pancreatic juice, that converts starch 

 into sugar, 306. 



amylolytic. Capable of converting starch into sugar. 



anabolism. The building up of chemical substances from simpler ones, 

 139, 225, 299. 



anaerobic (Gr. an = without -f aerobic). Growing only in the absence 

 of oxygen. 



anaesthetics (Gr. an = not -\-aisthesis = feeling). Drugs that dc.-n<>v 

 consciousness. 



analogy (Gr. ana = according to -f logos = a ratio). Likeness in func- 

 tion, 368. 



analysis (Gr. ana = up + luein = to loose). The reduction of a com- 

 pound to its component parts, 234. 



anaphase. The third stage of karyokinesis, 87,. 



anatomy (Gr. ana = up -f temnein = to cut). The study of the grosser 

 structure of organisms, 19. 



anchylosis (Gr. angkylos = crooked). The growing together of bones, 



animalculae. Microscopic organisms commonly found in water, 52. 



animal functions. -Those distinctive of animals, i. e., nervous and muscu- 

 lar, 217. 



animals and plants, differences between, 217, 224. 



annuals. Plants which live a single season only. 



Annulata (Gr. anulus = a ring). A group of animals with the body 

 divided into rings, 157, 378. 



Anopheles, 71, 72. 



antennae. Elongated appendages with sensory functions occurring on the 

 head of certain animals. 



anterior. Pertaining to the head, 155. 



