Outlines of Evolutionary Biology

adaptation adult Amoeba amongst ancestral appears become birds blastomeres blastula body cavity cell-division cell-wall centrosome chapter characters chemical chromatin chromosomes colony colour complete condition conjugation contain cytoplasm Darwin differentiation division embryo environment existence fact female gametes fertilized flagella flower gametes gametophyte gastrula germ cells germ plasm give rise Hæmatococcus heredity higher animals hybrid individual inherited insects kind known Lamarck large number larvæ layer less limbs living things mammals means membrane Mendelian micronucleus mitosis modifications multicellular mutations natural selection nucleus number of chromosomes Obelia occur offspring organic evolution origin ovum pair parent parthenogenesis pentadactyl plants and animals polar bodies pollen present produced proteids Protista protoplasm regarded represented reptiles resemblance result seed sexual single soma somatic cells somatogenic species spermatozoon spores sporophyte stage structure substance supposed take place term applied theory tion tissues typical unicellular variations vertebrates Weismann's zygote