What is nitrogen fixing? A When bacteria turn nitrogen into ammonium

В When humans absorb nitrogen
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Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false

What's the waste product of electrons and pyruvate combining in fermentation?  

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.