Without further context I would assume the answer here is: Hydroxyl groups.
<span>Ball and socket - Shoulder
Hinge joint - Elbow
Pivot Joint - Ulna/Radius
Plane joint - Wrist
Saddle joint - Thumb
Condyloid joint - Phalanges/Metacarpals</span>
Acute myocardial infarction, digoxin is contraindicated in patients with ventricular fibrillation or in patients with a known hypersensitivity to digoxin.
Digoxin is a type of therapy which has no effect on mortality in heart failure .It is useful for maintaining clinical stability and exercise capability in patients with symptomatic heart failure. DIgoxin is helpful during severe heart failure , cardiomegaly and third heart sound .
Digoxin can't be useful if the pateint have ventricular fibrillation, it is ab arrhythmia that starts from ventricle is called ventricular fibrillation. Digoxin is also called as digitalis , helps in injured or weekend heart pump more efficiently and strengthen the force of heart muscles contractions , helps restore a normal , steady heart rhythm, and improve blood circulation.
To learn about more digoxin here
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The correct answer would be D. beaks of finches
I chose this answer because in the Galapagos islands, the species of finches were forced to separate into several different environments, where there were different foods and plants. They lived in these environments for many years and eventually the beaks of these birds adapted to the environment around them. So the finches in one environment may have gotten longer beaks to eat fruits and get honey better, while one may have gotten a smaller but longer beak to gather and break nuts easier.
Hope this helps!