What is the name of the chemical the leech injects into the wound to keep the blood flowing so it can feed longer?

Place the steps tor the formation of the enzyme pepsinogen in correct order

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

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.