Organization Of Life: Question Preview (ID: 17916)

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What is the primary body function our lungs serve?
a) They transport oxygen to all parts of our body. Without oxygen we cannot live. The lungs are the main distributor of oxygen.
b) They clean our body of waste materials. The lungs are the main organs that filter waste materials out of our blood.
c) They exchange oxygen and carbon dioxide. In the lungs, oxygen diffuses into and carbon dioxide diffuses out of the blood.
d) They keep bad gases out of our body. Because the lungs have so much surface area, they collect all the bad chemicals.

What are organs made out of?
a) Organisms
b) Organ systems
c) Tissues
d) Cells

Which of the following is one of the major functions provided by our skin?
a) It extracts energy from food because skin is made of cells and energy is extracted in the cells.
b) It takes in oxygen from the atmosphere because it is our skin that comes in contact with the air around us.
c) It pumps blood through our body because when the skin contracts and expands it creates our pulse.
d) It protects the body from disease because skin acts as a barrier against disease-causing organisms.

Which of the following is an example of an organ?
a) large intestine
b) inner lining of the stomach
c) digestive system
d) muscle fiber

Which of the following is an example of an organism?
a) a mouse
b) a skull bone
c) a nerve cell
d) skin

Which of the following is the most complex level of organization in living things?
a) cell
b) organ
c) organ system
d) organism

Which letter correctly identifies the 5 levels of organization from simplest to the most complex?
a) person, muscle cell, heart, circulatory system, cardiac muscle tissue
b) person, circulatory system, heart, cardiac muscle tissue, muscle cell
c) muscle cell, heart, cardiac muscle tissue, circulatory system, person
d) muscle cell, cardiac muscle tissue, heart, circulatory system, person

Which choice correctly identifies the 5 levels of cell organization from most complex to simplest?
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

The epidermis and dermis make up the two main layers of the skin. Skin is an example of which level of organization?
a) cell
b) tissue
c) organ
d) system

Saliva contains an enzyme which begins to break down starch as soon as you put it into your mouth. If a person did not produce saliva, which would be most affected?
a) digestive system
b) blood cells
c) nervous system
d) liver

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