Answer:
The presence of pillow lavas in the oldest preserved volcanic sequences on the planet, the Isua and Barberton greenstone belts, confirms the presence of large bodies of water on the Earth's surface early in the Archean Eon. Pillow lavas are used generally to confirm subaqueous volcanism in metamorphic belts.
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Answer:
Plasmodesmata
Explanation:
<em>Plasmodesmata</em> <em>(or gap junctions)</em> are tube-like structures that form between cells allowing flow of ions and water molecule between the cells.
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- <em>Ravenna</em>
Answer:
In eukaryotic cells, however, the two processes are separated in both space and time: mRNAs are synthesized in the nucleus, and proteins are later made in the cytoplasm.
Explanation:
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No.
Glucose is a reactant in the process of glycolysis. Glycolysis is the breakdown of glucose by enzymes, producing pyruvic acid and releasing energy. Oxygen is not needed in the process of glycolysis, so therefore glycolysis is an anaerobic process. Oxygen is not required in cellular respiration until electron transport.
Therefore:
Glucose is not a reactant in the aerobic stages of cellular respiration, but it is a reactant in the initial anaerobic stages of cellular respiration.
