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What Element Is the Most Abundant in the Earth's Crust

question 43

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What element is the most abundant in the Earth's crust by weight?


Definitions:

Prophase

is the first stage of cell division in both mitosis and meiosis, characterized by the condensation of chromosomes and the breakdown of the nuclear envelope.

Receptor Protein

A molecule usually found on cell membranes that receives chemical signals from outside a cell, triggering an internal response.

Membrane Channel Protein

Membrane channel proteins are integral parts of cellular membranes, facilitating the selective transport of ions and molecules across the membrane.

Peripheral Protein

Proteins that are located on the outer surfaces of the lipid bilayer of cell membranes, not embedded within the lipid layer but often attached to integral proteins.

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