diversity in living organisms Presentation Transcript
CHARLES DARWIN• Charles Darwin was greatly influenced by the geologist Adam Sedgwick and naturalist John Henslow in his development of the theory of natural selection, which was to become the foundation concept supporting the theory of evolution. Darwin’s theory holds that environmental effects lead to varying degrees of reproductive success in individuals and groups of organisms. Natural selection tends to promote adaptation in organisms when necessary for survival. This revolutionary theory was published in 1859 in Darwin’s now famous treatise On the Origin of Species by Means of Natural Selection.
EVOLUTION OF MODERN PRIMATES
• It is the region of warm and humid tropical region of the earth , between the and where there is rich diversity of plants and animal life.
ORGANISMSPROKARYOTES EUKARYOTES UNICELLULAR MULTICELLULAR WITH CELL WALL PROTISTA WITHOUT CELLWALL DO NOT PERFORM ABLE TO PERFORM ANIMALIA PHOTOSYNTHESIS PHOTOSYNTHESIS FUNGI PLANTAE
• Penicillium Growing in Agar
PLANTS PLANT BODY PLANT BODY NOTDIFFERTIATED DIFFERTIATEDTHALLOPHYTA VASCULAR VASCULAR TISSUE TISSUE ABSENT PRESENT DO NOT PRODUCE SEEDS BRYOPHYTA PRODUCE [PHANEROGRAMS] SEEDS SEEDS SEEDS INSIDE PTERIDOPHYTA NAKED[GYMNO SPERMS] FRUITS[ANGIOSPERMS] SEEDS WITH TWO SEEDS WITH ONE COTYLEDONS[DICOTS] COTYLEDON[MONOCOTS ]