Appendix iB25 



Connective tissues (kon -nek' tiv) (L. con, together; nectere, to bind), similar 

 cells for support and binding. 



Conservation of energy, a law which states that the total energy content of the 

 universe is constant, that none is created, none is lost, but merely trans- 

 formed from one type to another {see Potential and Kinetic energy). 



Continuity of germ plasm, germ plasm is continuous throughout all generations 

 and is not produced anew each time a new individual is produced. 



Continuous variations, those in which varieties are merely plus or minus devia- 

 tions from the mode and which may be arranged serially in the form of a 

 simple curve. 



Contractile vacuole (kon -trak' til; vak'uol) (L. con, together; trahere, to draw; 

 L. vaccus, empty), a hollow structure which alternately contracts and ex- 

 pands, as in amoeba, paramecium, etc, 



Conus arteriosus (ko'nus; ar te ri -o' sus) (Gr. konus, cone shaped), cone-shaped 

 structure between the ventricle and arteries of certain animals. 



Convergent adaptation, different organisms assuming similar forms because of 

 their adaptations to the same environmental medium. 



Coordination, the harmonious working together of the various parts of an in- 

 dividual or of various individuals. 



Copulation (kop u -la' shun) (L. copulare, to couple), sexual union. 



Cork cambium, a ring of dividing cells, in woody plants, beneath the epidermis 

 which originates parenchyma on the inside and cork on the outside. 



Cornea (kor'nea) (L. corneus, horny), transparent part of the sclerotic coat of 

 the eye that covers the iris and pupil. 



Corolla (ko-rol'a) (L. corona, crown), all the flower petals taken together. 



Corpus luteum (kor' pus lu' te um) (L. corpis, body; luteus, yellow), a yellowish 

 body developed from a Graafian follicle after extrusion of ovum. 



Corpuscle (kor' pus 1) (L. corpusculum, little body), a small body, mass, or organ. 



Cortex (kor' tecks) (L. corium, covering or bark), the outer covering. 



Cortin (kor' tin) (L. cortex, covering), hormone from the cortex (covering) of 

 the adrenal glands. 



Cotyledon (kot i -le' dun) (Gr. kotyledon, cup-shaped hollow), embryonic seed 

 leaf, usually having stored food, 



Cowper's gland, small gland associated with the prostate gland and urethra of 

 male mammals. 



Cranial nerves, those arising from the brain. 



Cranium (kra' ni um) (Gr. cranios, brain case), the brain case. 



Creatinine (kre -at' i nin) (Gr. kreas, flesh) nitrogenous substance in muscles, 

 urine, etc. 



Cretinism (kre' tin izm) (L. christianus, human being), one who is physically and 

 mentally deficient due to deficient thyroid gland. 



Crinoid (kri' noid) (Gr. krinon, lily; eidos, like), a lilylike animal of the phylum 

 echinodermata. 



Criss-cross inheritance, paternal traits transmitted to daughters and maternal 

 traits to sons. 



Cross fertilization, union of gametes (sex cells) produced by different individuals, 

 either animals or plants. 



