Answer: B. Closed
In a closed circulatory system is the one in which the blood is circulated to all the parts of the body of the organism through vessels of different length and width. In this system the blood is pumped from the heart through blood vessels where it is transported to different organs and cells of the body instead of filling up the body cavity.
This process requires large volumes of water to pass through absorption surfaces to get enough oxygen into their bodies using their mouths and gills. These body parts work like a pump to keep water moving over the gas absorption surfaces of the gills.
Answer:
1 respiration
Explanation:
Specifically, during cellular respiration, the energy stored in glucose is transferred to ATP (Figure below). ATP, or adenosine triphosphate, is chemical energy the cell can use. ... Energy is stored in the bonds between the phosphate groups (PO4-) of the ATP molecule
They are called chromosomes
1) We must ration out the oils because we will be running out before 50 years & we must have new technology to replace the Fossil Fuels.
2) If we allow the World's resources to be used as fast as they are then at some point we will run right out of that resource forever.
3) There should be someone to take responsibility for the mining and usage of the World's resources before its too late and it should not be too long before we reach the point.
