The three systems that cause your body to move are nervous system, skeletal system, and the muscular system. The nervous system sends electric signals to different parts of your body, causing them to move. The skeletal system helps your blood move through your body, which makes your heart pump. This helps you recive oxygen. Finnaly, the muscular system keeps your heart beating. Those are the three systems that work together so you can continue to move!
• The establishment of a bird reservation is a way to preserve an ecosystem because reservation provides suitable environment to organism. A healthy ecosystem means large number of biodiversity.
6. While protists are unicellular eukaryotes can be both single or multicelled. Most protists have special organelles and a nuclear membrane which differs from bacteria.
