You place 150 m g of plant material in a vial and add 5 mL of sea water to it. Please do not write on this sheet. An answer sheet and scratch paper are provided. Read the questions carefully and answer them fully. Where necessary, please use complete sentences.
Legibility is essential.
The table below contains sample data from a brine shrimp bioassay of tobacco extract. The extracts were obtained by the same protocol we used in lab. You do not have to calculate the Chi-square value. You do not have to calculate the Chi-square value. Give the name of the trophic level and one example of an organism at each level.