<span>a. Fish have a single central heart; earthworms have several hearts.
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Multi cellular organisms are made up of billions of cells each specialized to a unique role and these cells are organized into structural and functional units such as tissues and organs.
For each cell and organ to function optimally, it requires oxygen and nutrients and needs carbon dioxide and metabolic waste taken away in a continuous, never ending process.
<span>A mechanism is needed to accomplish the important function of transporting the relevant materials to and from the cell. The circulatory system fits this bill splendidly. It is a specialized organ system which allows blood and lymph to flow through the entire body carrying nutrients such as glucose, amino acids and electrolytes as well as oxygen to each cell, at the same time carting away carbon dioxide and all sorts of metabolic waste over to excretory organs to be expelled from the body.
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Answer:
O There will be more rapid depletion of natural resources.
Explanation:
as more and more humans are born they will need more and more food homes and many other things, but they will eventualy run out.
Please give me brainly (if it is correct which i am certain it is)
Answer: The correct answer is A) It stores the energy from the glucose in the bonds between the phosphate groups.
ATP ( adenosine triphosphate) is considered as a form of chemical energy as the energy is stored in the high energy phosphoanhydride bonds, which are present between phosphate.
Whenever a body requires energy, glucose is metabolized and produces ATP. The energy from glucose molecule is stored in the ATP.
When ATP is hydrolyzed, it is converted into ADP ( adenosine diphosphate) and inorganic phosphate and the large amount of energy is released.
