A chemical from outside a cell that promotes cell division is called a
A) nutrient.
B) promoter.
C) mutagen.
D) telomere.
E) growth factor.
E
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The hormone that stimulates the production of testosterone is ________ hormone.
What will be an ideal response?
Which of the following definitions best describes the timbre of sounds?
A. loudness B. amplitude C. wave frequency D. resonance quality E. pitch
Which of the following is not correct concerning the skin?
A) The dermis is usually thicker than the epidermis. B) The subcutaneous layer is between the dermis and the epidermis. C) The dermis contains smooth muscle and nervous tissue. D) The epidermis is composed of stratified squamous epithelium.
The iliac region of the abdomen is also called the
A) inguinal region B) right upper quadrant C) hypogastric region D) left lower quadrant