The dura mater surrounding the brain consists of two layers. Give a functional reason for the fact that there are two layers instead of only one.
A. The two layers form a stronger blood-brain barrier.
B. Arteries are sandwiched between the layers.
C. Spaces between layers collect blood for return to the venous system.
D. The spaces are where cerebrospinal fluid is reabsorbed.
E. Fluid between the layers reduces friction.
C. Spaces between layers collect blood for return to the venous system.
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The binding of ATP to myosin causes an allosteric change in myosin's actin-binding site such that the affinity of myosin for actin is decreased.
Answer the following statement true (T) or false (F)
The traits of an individual controlled by his or her genotype are his or her
A) pleiotype. B) allotype. C) phenotype. D) isotype. E) genotype.
The gestation period is approximately:
A) 340 days. B) 2 weeks. C) 280 days. D) 120 days.
Determine the type of muscle contraction needed to lower a heavy bowling ball down by your side so you can roll it down the lane
What will be an ideal response?