An open circulatory system simply
means that the blood flows out of vessels and into the spaces or sinuses. Invertebrates,
insects and crustaceans has an open circulatory system where pump blood goes
into a hemocoel and diffusing back to the circulatory system between cells. In
other animals, the heart pumps the blood into the body cavities, spaces or
sinuses, where the blood surrounds the tissues.
Answer:
1- D,C,A,B,E- 2 - B,A,C,D- 3- C,D,B,A.
Explanation:
The skeletal system supports body structures; muscular system carries out the nerve commands to produce movement.
Hope this helps!
Occurs when magnetic energy that has been built up in the solar atmosphere has suddenly released. Have a good day and ask questions!!
-Kaylie