Use This Figure to Answer the Corresponding Questions

question 16

Short Answer

Use this figure to answer the corresponding questions.
This graph shows the electrical activity for one of the heart's

a. contractile cells
b. pacemaker cells
c. autorhythmic cells
d. contractile and autorhythmic cells
e. pacemaker and autorhythmic cells

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Definitions:

Ivan IV

Also known as Ivan the Terrible, the first tsar of all Russia (1547-1584), known for his tyrannical rule, territorial expansion, and establishment of the Tsardom of Russia.

Muscovy

A historical region centered around Moscow, forming the core of the Russian state from the late medieval period until the early modern era.

Serfdom

Serfdom was a form of agricultural labor prevalent in medieval Europe, where serfs were bound to the land and owned by the landowner, obligated to provide labor in return for protection and rights to cultivate certain fields.

Absolutism

A political doctrine and practice where a single ruler holds supreme authoritative power, not restricted by any laws or opposition.