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a large combination of RNA and protein which catalyses the formation or synthesis of proteins from individual amino acids. Ribosomes are found in all living cells.
the form in which carbon dioxide is transported in red blood cells.
a microscopic hair-like extension of the cell membrane of the epithelial cells forming the outer...
the first step of cellular respiration in which glucose is converted to pyruvic acid with small...
a perforated wall or part of a wall at the end of one of the individual cells making up a sieve...
the dramatic increase in the human population growth rate over the past two centuries.