Above a pH of 7, pepsin becomes irreversibly denatured. Pepsin was the first enzyme to ever be discovered, and it was discovered by <span>Theodor Schwann.</span>
The correct answer is (d.) proteins. Higher organisms use nitrogen to make their protein. Food that is containing protein also involves nitrogen in it. Protein also has amino acids that contain nitrogen in it which is a necessary essential nutrient for the body.
Answer:
D. alcohol
Explanation:
Fermentation by microorganisms converts organic materials into alcohol
A solstice can be two things, the summer solstice and the winter solstice. it's when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days. however, an eclipse is when the earth, moon and sun align together blocking the sun's light which is why it's called an eclipse because it means hiding/blocking. :)