Imagine you’re a germ trying to enter a human body through t…

Imagine you’re a germ trying to enter a human body through the skin of a person’s arm. Which layers of the epidermis do you have to get through and in which order? Name one challenge you encounter along the way. Explain your choice. How would your journey differ if you entered through the sole of the foot? 

A beginner weightlifter who starts with light weights and gr…

A beginner weightlifter who starts with light weights and gradually progresses to lifting heavier weights notices their strength increasing. They develop a sense of mastery and confidence in their abilities. Which psychological need does this fullfill based on self-determination theory?