Answer:
Louis Pasteur effectively disproved the spontaneous generation concept by performing research that displayed exposure to fresh air was the trigger of the microbial growth.
Explanation:
the answer will be c.Thrid class because one expample is the elbow joint
1.
the Changes of the Human Bodies
2. Shapes Different Careers
3. Provides Answers to Large-scale Problems
4. Teaches Concepts on Basic Living
5. Helps in Answering the Fundamental Questions About Life
6. Have another for (good luck) Paves Way for Scientific Investigations