Both cerebrum and cerebellum have gray matter in their surface cortex and deeper nuclei, and white matter deep to the cortex.
Answer the following statement true (T) or false (F)
True
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When myosin moves along the actin, it goes through cycles of binding and releasing (duty cycle). How does myosin keep from losing its place on the actin when it releases?
A) The time of the duty cycle is large (.99) so that it is only unattached a short time. B) The myosin is still attracted to the actin by weak electrostatic forces that prevent it from moving too far away during release. C) The myosin is attached to the actin by another protein that it uses as a safety line to prevent it from slipping too far back. D) The myosin is arranged in dimers so that when one releases, the other is bound.
When a finger is pricked, the blood will quickly stop flowing because of the action of the formed elements called ______________
Fill in the blank with correct word.
Delivers oxygen and nutrients to the tissues.
A) Lymphatic B) Cardiovascular C) Immune D) Endocrine
A(n) ________ consists of a combination of a weak acid and its dissociation products.
Fill in the blank(s) with the appropriate word(s).