Origin of life Flashcards
Proposed that life on earth is created by a supernatural power, GOD
Theory of Special Creations
Theory of Special Creations (A)
all living organisms were created on the same day [NO DIFFERENCES IN APPEARANCE]
Theory of Special Creations (B)
They were created in the present form [NO EVOLUTION]
Theory of Special Creations (C)
Their bodies and organs are fully developed to meet the requirements to run the life [NO ADAPTATION]
OBJECTIONS to theory of special creation: [3]
*purely based in religious belief
*no experimental evidence to support assumptions
*age of different fossils prove organisms appeared on earth at different times
Belief that organisms were produced/generated from non-living sources
Spontaneous Generation / Abiogenesis
abiogenesis from:
Frog-
Mice-
Flies
-Mud
-Dirty clothes
-decaying/rotting meat
believer of spontaneous generation
Jan Baptist van Helmont
Evidence against theory of Spontaneous Generation by (3)
*Lazzaro Spallanzani
*Francisco Redi
Louis Pasteur
Theory assumes that life is originated by the creation and it is followed by catastrophe due to geographical disturbances
Theory of Catastrophism
believed that the earth is still young. earth underwent violent sudden uplifts of mountains and volcanic eruptions
Theory of Catastrophism
This theory assumes that life was present in the form of resistant spores from other planets
Theory of Cosmozoic
Theory of cosmozoic got support from fossils of microorganisms found in meteorites in year-
1961
reached the earth in the form of spores or germs l\por other simple particlesfrom some unknown part of the universe with cosmic dust
protoplasm
Theory assumes that life had no beginning or end
Theory of Eternity of Life
At one point all of the continents were joined together as one large mass of land, then the land spread apart and drifted into their current positions
Continental Drift Hypothesis
Organic compounds interacted to produce all types of macromolecules which organized to form the first living systems or cells
Modern Theory of Life
Continental drift hypothesis by
Alfred Wegener in 1912
what does pangaea mean
“entire earth”
Evidence 1 of continental drift?
The apparent fit of continents
what early aquatic relative of reptiles, found as fossils from Early Permian period in South
America and South Africa.
Mesosaurus
4 organisms in apparent fit
mesosaurus, cynognathus, Glossopteris, Lystrosaurus
evidence 2 of COntinental drift
Fossil Correlation
Evidence 3 of Continental Drift
Rock and Mountain Correlation