evolution and origin of biodiversity
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who is the russian chemist that proposed the theory “primordial soup” in 1924. what year was he born?
Alexander Ivanovich Oparin (1894-1980)
what theory is the origin of life wherein it includes gradual chemical evolution of molecules that contain carbon
primordial soup
who are the 2 american chemist that conducted an experiment that stimulated the condition of earth in its early stages?
Stanley Miller and Harold Urey
from the experiment of the 2 american chemists, what did they discover?
several amino acids (building blocks of protein) accumulated
what appeared on earth when it cooled down and was able to carry water?
microscopic cell-like structures
what are the large organic molecules known as?
proteinoid microscopes
what is the scientific study of the existence of life, including the origin and eventual destruction or extinction of different groups of organisms.
paleontology
what group specializes in studying the ecologies of the past and the evolution of organsims that thrived in these ecologies through careful observation and documentation of fossils
paleontologists
what fossil did they discover in the late jurassic period in which they believe was a dinosaur?
archaeopteryx lithographica
what is the study of life on Earth based on the evidence found on rocks.
geology
who are scientists who carefully study the different materials that make up earth. They work to understand the history of Earth by focusing on the changes of Earth over time in relation to changes in climate and land formation.
geologists
what is used to represent evolutionary time?
the geologic time scale
whatare the largest divisions in geologic timeline. They are composed of hundreds of millions of years in duration. list them in order from most recent to oldest
Eons IN ORDER : phanerozoic eon proterozoic eon archaeozoic eon hadean eon
which eon began more than 500 mya.. This eon is characterized by the existence of organisms that had skeletons or hard shells. 500 mya
phanerozoic eon
which eon wherein first multicellular organisms arose and where mass extinction occurred. 2.5bya - 540 mya
proterozoic
which eon is where the first life-forms represented by single-celled organisms appeared; 3,9 - 2.5 bya
archaeozoic
what eon which characterized by Earth’s formation from dust and gases. 4.6 - 3.9 bya
hadean eon
Eons can be divided into smaller time intervals called ___. name them from recent to oldest
era in order : cenozoic era mesozoic era paleozoic era
what era began about 540 mya and lasted for about 300 million years. Man kinds of organisms lived during this era. This is when fossil records became rich with evidence of many marine organisms.
paleozoic
what era began about 200 mya and lasted for about 180 million years. This era is also called the Age of Reptiles and, sometimes, the age of Dinosaurs because this is when many kind of dinosaurs existed. This era also marked by the appearance of flowering plants.
mesozoic
what era is considered to be the latest era, which began from 65mya up to present. It is composed of the quaternary and tertiary period, which characterized by the presence of primitive mammals and modern human civilization. This why this era is sometimes called the Age of mammals.
cenozoic era
____ are further subdivisions of eras. dictate them
period vendian or ediacaran period cambrian period ordovician period devonian period silurian period carboniferous period permian period
The Mesozoic era was divided into the ___, ____, and ____ periods. dictate them from most recent to oldest.
cretaceous period (145-65 million years ago) jurassic period (200-145 million years ago) triassic period (245-200 million years ago)
____ are finer subdivisions shown in the Cenozoic era and parts of Mesozoic era. They are only done for most recent portion of the geologic timescale because of rocks in the late portions of the timescale have been buried deeply, causing them to be intensely deformed and severely modified by long-term Earth processes.
epochs