If you are new to the World Wide Web and would like a quick tutorial in web navigation click here . Look for the icon, when you spot one you know you are in the right place. You can just copy and paste your answer into the form below. The LPT Teacher Resources web site will be opened in a new window in your browser. Name at least 2 of the materials needed for the Using Sea Urchins as a Bioassay lab.
Sterile technique is used to prevent bacterial, fungal and viral contamination.
Contaminants generally fall into tubes or Petri dishes or are already present on utensils or in media.