Nerve impulse transmission between cells of the CNS without any delay can be attributed to
A) the presence of a neuromuscular synapse between the cells.
B) communicating junctions that permit the passage of ions between the cells.
C) the number of neurons in the chain.
D) drinking an energy drink.
E) the activity of Schwann cells.
B) communicating junctions that permit the passage of ions between the cells.
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Most transmembrane proteins have ___________ regions facing the intra- and extracellular fluid, and __________ regions embedded in the phospholipid bilayer.
A. hydrophilic; hydrophilic B. hydrophilic; hydrophobic C. hydrophobic; hydrophobic D. hydrophobic; hydrophilic E. lipophilic; lipophobic
This is not a characteristic of a proton.
a. Contributes to the atom’s atomic number b. Contributes to the atom’s atomic mass c. Is located in the nucleus of the atom d. Carries a negative electrical charge
The veterinarian recommended a/an __________________ biopsy to remove the entire skin lesion
Fill in the blank(s) with correct word
Match the structure of the eye with the appropriate description.A. Photoreceptor cells that function in black and white visionB. Photoreceptor cells that function in color visionC. The opening in the irisD. The innermost tunic of the eyeE. A pigmented contractile structureRods
Fill in the blank(s) with the appropriate word(s).