St 3 Ob 2 7th Grade Utah 7th Science: Question Preview (ID: 29286)


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Which answer correctly identifies the 5 levels of cell organization from simplest to most complex?
a) tissue, organs, organ systems, cell, organism b) organism, organ system, organ, tissue, cell c) organ system, cell, tissue, organ, organism d) cell, tissue, organ, organ system, organism
Which answer correctly identifies the 5 levels of cell organization in a dogs body from simple to most complex?
a) bone cell, bone tissue, femur (thigh bone), skeleton, dog b) dog, skeleton, femur, bone tissue, bone cell c) skeleton, bone tissue, bone cell, dog, femur d) bone tissue, bone cell, femur, skeleton, dog
The brain is an example of which level of organization in a body?
a) cell b) tissue c) organ d) organ system
A nerve is an example of which level of organization in a body?
a) cell b) tissue c) organ d) organism
The lining of the stomach is an example of which level of organization in a body?
a) cell b) tissue c) organ d) organ system
A human is an example of which level of organization in a body?
a) cell b) tissue c) organ d) organism
How do the chambers of the heart and valves between them affect the circulatory system?
a) They control the flow of blood to different parts of the body. b) They create new blood cells than travel to body tissues. c) They allow blood to absorb oxygen and release carbon dioxide. d) They store the blood for the times when it is needed.
The lungs are composed of tiny sacs that fill with air during breathing. How does this tissue help the lungs do their job?
a) it allows air to contact a large surface b) it allows muscles to open and close them. c) it allows the lung to pump the air. d) it allows the lungs to produce more blood.
Why does the stomach need to be made of muscle tissue?
a) So liquids do not pool in the intestine. b) To give the body strength in the middle. c) So it can churn the food and help break it down. d) To help the heart pump blood containing food to the body.
Which organ system transfers gasses into and out of the blood?
a) nervous system b) respiratory system c) skeletal system d) lymphatic system
Which organs collect and excrete cell wastes?
a) skin and heart b) stomach and pancreas c) bladder and kidneys d) lungs and heart
Which organs breakdown food for cells?
a) heart, arteries, blood b) stomach, intestine, pancreas c) nerve, brain, spinal cord d) skin, pancreas, skeletal
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