Not having the excerpt here, I can only help you to find the answer. Mood is the feeling you get when you read the passage. Foreboding is fearful or apprehensive. Welcoming is or can be joyful and accommodating or making someone feel comfortable in their surroundings. Sorrowful is sad or mournful. Optimistic is positive, hopeful, and confident about your future. As you read the passage, which of these are you feeling or closely matches your feelings.
Answer:
3 capture an asteroid is the answer
Enzymes are made from amino acids and they are proteins. When an enzyme is formed it is made by stringing together between 100 to 1000 amino acids in a very specific unique order.