Podcast
Questions and Answers
What is the primary mechanism for gas exchange in small unicellular organisms like bacteria and protozoa?
What is the primary mechanism for gas exchange in small unicellular organisms like bacteria and protozoa?
- Cell membrane (correct)
- Gills
- Pulmonary alveoli
- Spongy mesophylls
What specialized structure provides the large area needed for effective gas exchange in most larger organisms?
What specialized structure provides the large area needed for effective gas exchange in most larger organisms?
- Gills (correct)
- Cell membrane
- Pulmonary alveoli
- Spongy mesophylls
In which organisms can sufficient gas exchange occur across the skin or cuticle that surrounds their bodies?
In which organisms can sufficient gas exchange occur across the skin or cuticle that surrounds their bodies?
- Flatworms (correct)
- Protozoa
- Bacteria
- Spongy mesophylls
What is the physical process by which gases move passively by diffusion across a surface?
What is the physical process by which gases move passively by diffusion across a surface?
What is the boundary between an organism and its extracellular environment where gas exchange may occur?
What is the boundary between an organism and its extracellular environment where gas exchange may occur?
What is the study of the systems and organs of the human body and their functions?
What is the study of the systems and organs of the human body and their functions?
Which element is NOT mentioned as a component of the human body?
Which element is NOT mentioned as a component of the human body?
Where does the majority of the extracellular fluid reside in the human body?
Where does the majority of the extracellular fluid reside in the human body?
What percentage of the adult male body is water?
What percentage of the adult male body is water?
What is the primary purpose of the human body's organ systems?
What is the primary purpose of the human body's organ systems?
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