The oldest true fossils are trace fossils called Stromatolites found in Australia, and dated between 3.5 to 3.3 billion years old.
Raphael Baumgartner and their team have finally uncovered evidence of organic matter in the ancient rock formations known as stromatolites found at the Dresser Formation fossil site in the Pilbara region of Western Australia. They detail their findings in a new article published in the journal Geology.
With a variety of methods, including scanning electron microscopy, scanning transmission electron microscopy, energy dispersive X-ray spectroscopy, Raman spectroscopy, nano-scale secondary ion mass spectrometry, and stable carbon isotope analysis, the researchers examined the samples in thin slices.
According to the team's analyses, pyrite, a mineral with many tiny pores, makes up the majority of the stromatolites. Additionally, the pyrite contains nitrogen-bearing organic material and strands and filaments of organic material that closely resemble the remains of microbial biofilm colonies.
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<span>1. One common interaction between biotic and abiotic components of an ecosystem is photosynthesis.
Sunlight is abiotic (solely energy), and it fuels the synthesis of
sugars and proteins inside plant cells once it is taken up by plant
leaves. </span><span>This process also produces oxygen.
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2. Biotic factor that can affect the size of a population in a specific ecosystem:
<span>Number and kinds of predators in the ecosystem.
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Predator-prey relationships
When the
moose population is high on Isle Royale, the wolves have more food
source from preying on the moose. This supports an increase in the wolf
population.</span>
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3. Temperature
You can change the temperature to freezing it will affect the aquarium because the organisms will not be able to tolerate the new environment if they are species that thrive in warm temperatures.
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The factors that contribute to the dehydration in older
patients are the following;
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Decrease in the thirst mechanism
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The inability of holding a glass or a cup
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Presence of confusion as well as disorientation
These are the factors in which could be seen in identifying
a dehydrated individual
Your answer is B biological catalyst that regulates chemical reaction in the body
