Humans breathe in ______ and breathe out _______. A. Carbon ... | MedicalQuiz.Net

★ Human Organ System Quiz

Humans breathe in ______ and breathe out _______.

A. Carbon dioxide; oxygen

B. Oxygen; carbon dioxide

C. carbon, oxygen

D. oxygen, carbon

Select your answer:

Topics:

The Chemistry of Microbiology Human Organ System Cholera Effect of Exercise on Cardio Respiratory System & Muscular First Aid Check up Physiology Excretion in Humans The Brain Cell Theory Facial & Dental Injuries Functional Anatomy in Track & Field Asthma Unintentional Injuries Pulmonology/Respiratory Motor Neuron Disease

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Pollen tube enters the embryo sac through

A. Integument

B. Micropyle

C. Chalaza

D. Funicle

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How many skeletal muscles does the human body contain approximately?

A. 100

B. 400

C. 200

D. 300

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