Grade 8 Final Exam Review Circulatory
System Questions and Graded Answers.
circulatory system - the organs and tissues involved in circulating blood through the body
Oxygenated Blood - blood that carries an abundant amount of oxygen (red artery)
Un-Oxygenated Blood - Blood that is not carrying oxygen (blue veins)
Where do your veins/artery reverse? - In the lungs.
Where is the heart located? - between the lungs
What is cancer? - uncontrolled cell growth
What is a unicellular organism? - An organism is made up of 1 cell.
What is a multicellular organism? - An organism made of many cells
What are the advantages of having a unicellular organism? - Rapid reproduction and adaptability.
What are the disadvantages of having a unicellular organism? - Limited complexity, Short life
spans, Limited genetic variation.
What are the disadvantages of having a multicellular organism? - More energy requirment,
cancer, decreased mobility.
What are the advantages of having a multicellular organism? - Greater size, more complexity,
increased longevity, and adaptability.
System Questions and Graded Answers.
circulatory system - the organs and tissues involved in circulating blood through the body
Oxygenated Blood - blood that carries an abundant amount of oxygen (red artery)
Un-Oxygenated Blood - Blood that is not carrying oxygen (blue veins)
Where do your veins/artery reverse? - In the lungs.
Where is the heart located? - between the lungs
What is cancer? - uncontrolled cell growth
What is a unicellular organism? - An organism is made up of 1 cell.
What is a multicellular organism? - An organism made of many cells
What are the advantages of having a unicellular organism? - Rapid reproduction and adaptability.
What are the disadvantages of having a unicellular organism? - Limited complexity, Short life
spans, Limited genetic variation.
What are the disadvantages of having a multicellular organism? - More energy requirment,
cancer, decreased mobility.
What are the advantages of having a multicellular organism? - Greater size, more complexity,
increased longevity, and adaptability.
