What triggers erythropoietin release?
A) decreased blood oxygen levels
B) damage to a blood vessel wall and subsequent exposure of collagen
C) infection in the tissues
D) increased blood carbon dioxide levels
E) infection in the blood
Ans: A) decreased blood oxygen levels
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Baroreceptors have stretch-sensitive ion channels in their cell membrane. Increased pressure on the membrane opens the channels and allows ion flow that initiates action potentials. What kind of ion probably flows through these channels and in which direction?
What will be an ideal response?
The ___________ separates the cerebrum from the cerebellum
A) lateral sulcus B) longitudinal fissure C) transverse fissure D) central sulcus
From the stomach, food passes into the duodenum, then the jejunum, and then the ileum.
Answer the following statement true (T) or false (F)
Capacitation lasts several ________ and involves removal of ___________
A. seconds; lipids from the surface of the egg B. hours; proteins from the surface of the sperm C. days; carbohydrates from the surface of the egg D. weeks; glycolipids from the surface of the sperm