(1)Highlights any five areas where lack this knowledge (2) write two functions of calcium (3) write one deficiency symptoms of calcium in layers?(4) contrast between Essential and non essential amino?

(1) Areas where lack of knowledge about calcium may exist include:
- Understanding the importance of calcium in bone health
- Knowing the recommended daily intake of calcium
- Recognizing sources of calcium in the diet
- Understanding the role of vitamin D in calcium absorption
- Knowing the symptoms of calcium deficiency

(2) Two functions of calcium in the body are:
- Calcium is essential for the formation and maintenance of strong bones and teeth
- Calcium plays a role in muscle contraction, nerve function, and blood clotting

(3) One deficiency symptom of calcium in layers is the development of weak or brittle eggshells.

(4) Essential amino acids are amino acids that cannot be synthesized by the body and must be obtained from the diet, while non-essential amino acids can be synthesized by the body. Essential amino acids are necessary for protein synthesis and various metabolic processes, while non-essential amino acids play a role in maintaining overall health and function in the body.