MALPIGHIAN TUBULES 

 see Excretory system 



MAMMARY GLAND 

 see Gland(s) (exocrine) 



MAST CELLS 



see Bone marrow; Connective 

 tissue 



MATERNAL EFFECTS 



see Genetics 



MATERNAL INHERITANCE 



see Genetics 



MATHEMATICS 



see Theoretical biology 



MATURATION 



see Egg(s) 



MEIOSIS 

 see Egg(s) 



see also Oogenesis; 

 Spermatogenesis 



MELANIN 



see Pigment(ation) 



see also Melanophore(s) 



MELANOPHORE(S) 



see also Neural crest; Pigment 



Amphibia Golichenkov 



Teleostei Bereiter 



MERISTEMS 



see Plant embryology & 

 morohogenesis 



MEROGONES 



see Genetics; Hybrid(s) 



MESENCHYME 

 Ascidiacea Sala 

 Aves Flint 



Gum pel 



Seidl 

 Mammalia Ballard 



Knese 



Merker 

 Porifera Robert 



MESODERM 



see Embryology (experi- 

 mental); Embryology (general 

 & descriptive) 



MESONEPHROS 



see Kidney(s) 



METABOLISM (general) 

 see also Energy; Respiration 

 Amphibia Landstrom 



L^vtrup 

 Oligochaeta Landstrom 

 L^vtrup 

 early embryo 



Aves McKenzie 



Mammalia Lutwak 



egg 



Gastropoda Geilenkirchen 

 Insecta Hansen 



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