What 2 methods can be used for anal gland expression?
What will be an ideal response?
internal and external
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Frequently, several different signals or molecules are needed in order to produce an immune response by a B cell or T cell. The second signal in this process is called ________.
A. complement activation B. opsonization C. antigen processing D. costimulation E. copresentation
If you are sitting on a sofa and raise your arm to rest it on the back of the sofa, what action must occur at the shoulder joint?
A. Extension B. Elevation C. Lateral excursion D. Adduction E. Abduction
Stem cells may be activated after an injury, helping to heal
Indicate whether the statement is true or false
Alzheimer's disease is thought to involve primarily:
A. loss of neurons that secrete or respond to catecholamines. B. loss of adrenergic neurons. C. loss of cholinergic neurons. D. loss of neurons that secrete or respond to dopamine. E. tumors that produce excess serotonin.