The ____________________ refer to the many external characteristics not directly involved in reproduction that distinguish males and females. The hormone ____________________ in males and the hormone ____________________ in females are responsible for the development and maintenance of these characteristics

Fill in the blank(s) with correct word


secondary sexual characteristics, testosterone, estrogen

Anatomy & Physiology

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What effect does a reverberating circuit have on the ability of the organism to function?

What will be an ideal response?

Anatomy & Physiology

Match the structure with its function: centrioles

A)Intracellular digestion B)Organize the spindle during mitosis C)Lipid synthesis D)Protein synthesis E)Support the cell and give it shape; involved in cell movements

Anatomy & Physiology

Sound waves pass through this canal on their way toward the eardrum

A) semicircular canal B) external acoustic meatus C) auditory tube D) cochlear duct

Anatomy & Physiology

Oxygen-poor blood enters which chamber of the heart?

a. Left ventricle b. Right ventricle c. Right atrium d. Left atrium

Anatomy & Physiology