One cardiac cycle is .8 seconds. A complete heartbeat is produced in one cardiac cycle. <span>The period of time that begins with contraction of the atria and ends with ventricular relaxation is known as the cardiac cycle. The period of contraction that the heart undergoes while it pumps blood into circulation is called systole.</span>
Answer:
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Explanation:
Answer:
The prey are usually smaller than the predator so they don't have as much energy.
Explanation:
The “S” phase which is the phase of DNA synthesis
Answer: trite a hypothesis
Explanation:
The basic idea of a hypothesis is that there is no pre-determined outcome. For a hypothesis to be termed a scientific hypothesis, it has to be something that can be supported or refuted through carefully crafted experimentation or observation.
