What route does air follow to the human lungs as it is inhaled?
A) nasal cavity, trachea, larynx, bronchiole, alveolus
B) nasal cavity, larynx, bronchiole, trachea, alveolus
C) nasal cavity, bronchiole, larynx, trachea, alveolus
D) nasal cavity, larynx, trachea, bronchiole, alveolus
D
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According to the currently popular scientific theory for the origin of life, which of the following occurred before all of the others?
A. Eukaryotic organisms B. Oxygen in the atmosphere C. Prokaryotic organisms D. Photosynthesis
Preliminary digestion of carbohydrates begins in the _____.
A. mouth B. esophagus C. stomach D. duodenum E. jejunum
Currently, the most common method of vaccination is injection. Modern biotechnology is likely to make injection less common through the development of ________
A) gene editing B) edible vaccines C) fusion proteins D) biopharming
What is the name of the paired excretory organs found in most body segments of segmented worms?
a. parapodia b. metanephridia c. setae d. clitella