Questions

The last line from the file "trial" would be read twice. To avoid this, ues:

       While ( fgets (str, 80, fp) ! = NULL)

               puts (str);

No, the given statement is False.

Parasites are organisms that feed on other organisms causing harm to them.

Foods that allow micro organisms to grow are called Growth Mediums.

Pine Top Smith (1899-1929) Considered to be the originator of the Boogie -Woogie style of piano playing.

Cretinism is a disease caused by hypothyroidism(less thyroxine formation).The symptoms of the disease are retardation  of mental, physical and sexual developments. Potbellt, protruding tongue, dry skin etc are also indicative of this disease.

The protein synthesis take place in a cell outside the nucleus in the structures called ribosomes. Ribosomes link amino acids together in the order specified by messenger RNA molecules.

The llama, its wild cousin , the Vicuna and hump-less Alpaca are also found in the high pasture lands of the Andes region of Bolivia and peru, where they are useful as beasts of burden and for the production of fleece and meat.