An ecologist is reading another scientist's paper and encounters the table shown on primary productivity in a mountain lake. He wishes to compare the values in the table to his own productivity values of a similar lake, but his data is expressed in mg C/L water. Season Productivity (mg O/L water) Winter 9. Spring 30 Summer 90 Fall 35 What is the mass of carbon fixed (mg C/L) during summer?
Essential nutrients
These are the organic compounds present in the food that provide nourishment essential for the development and growth of our body. Nutrients not only provide us with the required energy to carry out various biological processes but are also the building blocks for repair and growth in our bodies.
Vitamins
The vitamins are organic molecules required in low concentration for the proper functioning of the body. They cannot be generated in the organism and are taken into the body through the diet. The lack of proper vitamins results in diverse deficiency disorders. They are thus called essential nutrients. The important vitamins are vitamin A, vitamin B complex, vitamin C, vitamin D, vitamin K, and vitamin E.
These are the formulas provided by the college board
Primary Productivity Calculations:
1. mg O2/L x 0.698 = mL O2/L
2. mL O2/L x 0.536 = mg carbon fixed/L
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