Part A

Setting Up

1. Mark the plastic tubing at 12 cm, 22 cm, and 32 cm from one end so that you will have the tube divided into four sections. Starting at one end, label the sections 1, 2, 3, and 4. Label four test tubes 1, 2,

2. Place a cork in one end of the tubing. Use a graduated cylinder and a funnel to transfer about 50 mL of brine shrimp culture into the tubing. Cork the open end, and lay the tubing on the desktop.

3. You and your partner will complete either Part ^^ B or Part C and then share your results with the other students on your team. CAUTION You will be working with live animals. Be sure to treat them gently and to follow directions carefully.

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