Outlines of Evolutionary Biology

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