A) epidermis is the correct answer.
I believe it's 4 cells in the first month.
The scientific method is a systematic process that involves:
Making an observation.
Stating a question.
Formulating a hypothesis.
Conducting an experiment.
Analyzing the data and drawing conclusions.
Answer:
1. Neck and Shoulder
2.arms and the back
3.A comfortable place to work
4.The study of people's efficiency in their working environment
5.A poor posture, Vibration, using too much force, frequent lifting
