The reflex that helps babies hold onto a breast (or bottle) and swallow is the ________ reflex
A) flexor
B) rooting
C) enterogastric
D) sucking
D
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Pitch refers to the ________ of sound waves; pitch is determined by the tension produced by ________ laryngeal muscles
A. frequency; intrinsic B. frequency; extrinsic C. loudness; intrinsic D. loudness; extrinsic
Fertilization is characterized by
a. a sperm's fertilin proteins binding to the ovum's integrin molecules. b. a block to polyspermy. c. multiple sperms penetrating the ovum. d. blastocyst formation. e. both (a) and (b) above.
Describe the steps of the renin-angiotensin-aldosterone system (RAAS) resulting in the release of aldosterone. What is the function of this system?
What will be an ideal response?
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "D"?
A. major site of ATP synthesis when oxygen is available B. contains digestive enzymes C. outer boundary of cell, controls entry and exit of substances D. directs cellular activities, contains DNA E. site of protein synthesis