An enzyme attracts substrates to its active site, catalyzes the chemical reaction by which products are formed, and then allows the products to dissociate (separate from the enzyme surface).
The information given is reliable because it is based on a number of studies which were done by scientists at a variety of veterinary schools. The studies are also recent according to the article. The differences between the American and English breed are clearly stated and precise making Devon's work of identification easy.
Answer:
D 50% is the correct answer
First water, air(oxygen), temperature, after sporting needs Sunlight and