Gathering and preparing for a scarcely adapt winter
The best answer is A and D
Because humans want to help the world in their own way and want to help in a way that will promise to benefit the world
Answer:
Muscles connect to your skeleton and they contract and move the skeleton along.
Explanation:
Your skeletal system is made up of cartilage and calcified bone that work together. They help the process of movement happen in a smoother manner. The calcified bones of your skeleton also work with the circulatory system.