living environment quiz Flashcards
evolution is…
the change within a population overtime
the hypothesis of a primitive atmosphere is
the ancient atmosphere of Earth was made up of methane, ammonia, hydrogen, water, nitrogen and carbon dioxide
the hypothesis called primordal soup is
as the temperature of the ancient oceans cooled, it started to rain which brought those molecules in the air into the ocean
the hypothesis of energy is
energy added into the primordal soup created organic compounds such as amino acids and sugars in the form of heat and electrical.
______ and ______ were able to accomplish the energy hypothesis in a lab
Stanley Miller
Harold Urey
the hypothesis of protocells is…. _____ was able to do this in a lab
the organic compounds combined to form protocells. while they are not considered alive, they are “life-like”, they can reproduce. Sydney fox was able to do this in a lab
the hypothesis of living cells is
from the protocells, the first living cells are formed. they are probably prokaryotes (simple cell), heterotrophic, and anaerobic (there is no oxygen in the atmosphere yet)
the hypothesis of development of autotrophs is
from these first heterotrophs, the autotrophs will develop. these organisms are still anaerobic but they go through photosynthesis and adding oxygen to the atmosphere (may take millions of years)
aerobic transformation is the most efficient way..
to get energy from glucose
the hypothesis of aerobes develop is
as oxygen levels rise in the atmosphere from the anaerobic autotrophs, a new group of organisms develop. these organisms can use oxygen during respiration, also known as aerobes.
what is an aerobe
an organism that uses oxygen
the only type of rock fossils can be found in is
sedimentary rock
the lower the fossil is found in the rock…
the older it is
other forms of fossils include..
actual bones
teeth
organisms frozen in ice
organisms trapped in amber
amber is
hardened tree sack
