Three samples were taken and were put in three test tubes each named as A, B and C. In A, milk was added, B had meat pieces and C had crushed potatoes in it. Observe the names of tests written above each test tube and write (for all test tubes) • Material Required • The Procedure • Expected End Results • Conclusions • Safety Measures (if any) If you find any negative result. Explain why it is so?

A is the test of protein, B is the test for fat and C is the test for starch

Explanation:

For A, the materials required are;

- the procedure;

- the result and conclusion;

if the solution turns violet, protein is present.

For B, the materials needed are;

- the procedure;

- the result and conclusion;

if an oily patch is observed in the paper, then fat is present.

For C, the materials are;

- the procedure;

- the result and conclusion;

if a blue-black coloration is observed, starch is present.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.