Examlex
Which of the following groups contains the largest number of animals?
Steroids
A large class of organic compounds with a characteristic molecular structure containing four rings of carbon atoms; examples include hormones and cholesterol.
Antibiotics
Medications used to prevent and treat bacterial infections by either killing bacteria or inhibiting their growth.
Mucus-Thinning Drugs
Medications designed to reduce the viscosity of mucus, helping to alleviate congestion in the respiratory tract.
Vocal Cords
Paired bands of muscle tissue located in the larynx (voice box) that vibrate to produce sound when air is expelled from the lungs.
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