Weegy: Every 3 to 5 seconds, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs.
User: In addition to the urinary tract, what is considered an excretory organ?
A. Heart
B. Skin
C. Larynx
D. Muscles
Weegy: In addition to the urinary tract, SKIN is considered an excretory organ.
User: What factors influence lung volume and capacities?
A. Age
B. Sex
C. Body build
D. All of the above
Weegy: Factors such as age, sex, body build, and physical conditioning have an influence on lung volumes and capacities. [ Lungs usually reach their maximum in capacity in early adulthood and decline with age after that.
]
User: Which organ is NOT a part of the digestive system?
A. Esophagus
B. Gallbladder
C. Kidneys
D. Mouth
Weegy: Kidney is NOT a part of the digestive system.
User: What is the exchange of gases between the lungs and the blood?
A. Internal respiration
B. Posterior respiration
C. External respiration
D. None of the above
Weegy: External respiration is the exchange of gases between the lungs and the blood.
User: The food molecules that cannot be ________ need to be eliminated from the body.
A. Ingested
B. Digested
C. Regurgitated
D. All of the above
Weegy: The food molecules that cannot be digested need to be eliminated from the body.
User: What is the larynx commonly called?
A. Voice box or epiglottis
B. Vocal cord
C. Voice box or glottis
D. Vocal ligament
Weegy: The larynx is commonly called Voice box or glottis.
User: What is the first activity of the digestive system?
A. Digestion
B. Ingestion
C. Movement
D. Absorption
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