Which sphere of earth includes icebergs

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above

Label the steps for protein synthesis in order, beginning with the first steponce the protein is made, the gene for a particular trait is expressedmrna joins the ribosome, and the anticodons from trna join mrna to form a chain ofamino acidsrna polymerase unzips dna and free rna nucleotides join dna to form mrnav a chain of amino acids is formed from peptide bonds, creating a proteinmrna is transported from the nucleus of the cell to the ribosomes of the cell.

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give