earth and life presentation
Transcript: by: Group 4 How Human Survived? Human Origin 5 theories on where humans come from We were put on Earth by Aliens- Humans are not from Earth but were put by an aliens Creationism Theory- This theory tells us we were made by God,starting with man and woman, Adam and Eve AQUATIC APE THEORY- The aquatic ape theory can explain how we came to have such features as long hair, protruding noses, and naked skin. Intelligent design theory- a scientific approach to our creation, it claims that there is some sort super natural designer was involved in the creation of the humans Evolution Theory- humans were created through the process of evolution by natural selection Human Evolution -is the evolutionary process that led to to the emergence of anatomically modern humans, beginning with the evolutionary history of apes Sahelanthropus tchadensis (6-7mya) First upright walkers which defines the trait ofthw hominin in eage . Dwells in forest and grassland Orrorin tugenensis (6 mya) can climb trees but were also capable at walking upright and it is about the size at a chimpanzee small teeth and bone buildup of upper femur. Dwells in forest and grassland Ardipithecus kadabba (5.2-5.8 mya) The oldest ancestor that walked upright judging from the large toe that has a broad and robust appearance Dwells in mixed habitat of woodlands and grasslands Ardipithecus ramidus (4.4 mya) A human African ape common ancestor that was not chimpanzee like, in contrast to other hominis before it Dwells in a wooden land and environment Australopithecus anamensis (3.9-4.2 mya) The first human ancestors to live in the savannah, combination of ape and human features. Dwells near the lakes. Australopithecus afarensis (2.95-3.85 mya) one of the best known ancestors due to a number of major discoveries Dwells in woodlands and survived Kenyanthropus platyops (3.2-3.5 mya) claim it's a bridge between the walking apes and modern human Australopithecus africanus (2.1-3.3 mya similar to afarensis with a combination of human-like and ape like features. adapted to both climbing and walking upright Paranthropus aethiopicus (1.2-2.3) The famous "Black Skull" Dwells in a near lake Paranthropus boisei (1.2-2.3 mya) the famous "Zinj skull" indicated large flat cheek teeth and thick enamel Homo habilis (1.4-2.33 mya) known as the"Handy Man " due to the fact that the hominin mastered the lower paleolithic oldowan tool. Homo Rudolfensis (1.8-1.9 mya) was contemporary with homo habilis and the two likely interacted. Dwells near the shores of lake Rodulf Homo ergaster (1.3-1.8 mya) known as the "work man" because for its advanced lithic technology first use "Human voice and protolanguage" Homo erectus (200,000-1.89 mya) " the upright man" as they called capable of controlling fire and tool maker Homo heidelbergensis (200,000-700,000 ya) a sophisticated hunter and tool maker capable of controlling fire and burying their dead. Homo rhodesiensis (125,000-400,000 ya) intermediate features between homo sapiens and homo neanderthalensis Homo neanderthalensis ( 40,000-400,000 ya) our closest extinct relatives Dwells in a cold climate skilled hunters and craftman Homo floresiens (???-50,000 ya) diminutive stature and miniscule brain are the result of island dwarfism known as the "Habit" Homo Sapiens (300,000 years-present) the modern human The Evolutionary Theory humans were created through the process of evolution by natural selection How Humans Survived??? Three different human species may have walked the Earth at the dawn of the human lineage, dividing up their environment in slightly different ways, and the ancestors of modern humans may have survived because off traits such as large brains that helped them adapt to unstable, shifting landscapes, researchers say. Humans Interaction with the environment Reproduction Cycle on Human Human reproduction is any form of sexual reproduction resulting in human fertilization, typically involving sexual intercourse between a man and a woman. During sexual intercourse, the interaction between the male and female reproductive systems results in fertilization of the woman's ovum by the man's sperm. Reproduction Cycle of Human Assisted reproductive technology (ART) Technological Advancements of Human Reproduction In vitro fertilization (IVF) Evidence of Successful of ART AND IVF Digestive system is uniquely designed to turn the food you eat into nutrients,which the body uses for energy, growth and cell. Mouth-digestion starts here as soon as you take the first bite of a meal. Throat-Also called the pharynx, the throat is the next destination for food you've eaten. Esophagus-a muscular tube extending from the pharynx to the stomach. Stomach- holding the food and also mixing and grinding it. Small Intestine-continues the process of breaking down food by using enzymes released by the pancreas and bile from the liver. Pancreas-These enzymes break down protein, fat, and carbohydrates from the food we eat. Liver-make and secrete bile, and to
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