________________________________________ nerves transport impulses up to 50 times faster than nerves without myelin sheaths
Fill in the blank(s) with correct word
Myelinated
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How would decreased diffusion across the arachnoid granulations affect the volume of cerebrospinal fluid in the ventricles?
A) Decreased diffusion across the arachnoid granulations would decrease the volume of CSF in the ventricles because less CSF would reenter the bloodstream. B) Decreased diffusion across the arachnoid granulations would decrease the volume of CSF in the ventricles because more CSF would reenter the bloodstream. C) Decreased diffusion across the arachnoid granulations would increase the volume of CSF in the ventricles because less CSF would reenter the bloodstream. D) Decreased diffusion across the arachnoid granulations would increase the volume of CSF in the ventricles because more CSF would reenter the bloodstream. E) Decreased diffusion across the arachnoid granulations would not change the volume of CSF because the amount of CSF reentering the bloodstream can accommodate for the changes.
List the four key morphological traits that characterize all chordates. Discuss the important physiological transitions from early chordates to Craniata and their evolutionary implication
What will be an ideal response?
The Y chromosome codes for a protein called __________, which initiates development of male anatomy.
A. SRY (sex-determining region of the Y) B. MIF (mullerian-inhibiting factor) C. GDX (gender-determining region of the X) D. TDF (testis-determining factor)
The mass of a chemical equal to its molecular weight in grams, containing 6.023 x 1023 molecules is a/an ________.
A. atomic mass unit B. mole C. molarity D. ion