Biology, 10.12.2020 23:10 naomichristiancn
The theory of abiogenesis can best be ordered in a sequence of events from the beginning of Earth's formation to today. List the most recent occurrence as Item 1 and the most ancient (first that occurred on the planet) as Item 6
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1.Sponges and corals form
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2.Methane, carbon dioxide, and sulfur compounds in the atmosphere and warm ocean water are struck by lightning causing them to bond together into macromolecules called amino acids
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3.proteins begin to self replicate and form clusters
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4.eukaryotic photosynthetic algae forms
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5.Simple chordates appear like tunicates, hagfish, lampreys, and eels
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6.membraned covered chemosynthetic prokaryotic bacteria form
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Biology, 22.06.2019 03:30
Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 1
Biology, 22.06.2019 10:20
The function of the excretory system is to control homeostasis and
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The theory of abiogenesis can best be ordered in a sequence of events from the beginning of Earth's...
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