the answer is biologicle catalyst
Answer:
In biology, students study a variety of life processes and learn how different organisms meet the challenges of living in their environment. Major biological concepts for student focus include homeostasis, energy transfer and use, the relationship between structure and function, and change over time.
Explanation:
The correct answer is B. Guilt.
Procrastinators can develop feelings of guilt because they were not able to accomplish what they have to do. Instead of finishing their tasks, they did other things that are not important. After wasting time, this may cause them to feel guilt as they should have spend that time to their tasks instead of wasting it. So the correct answer is guilt. I hope this answer helped you.
(A) the softest layer of rock?