The answer is most likely the second one. It makes the most sense.
Hope this helps!
Answer:
The correct answer is: Electrical impulses in the heart cause the muscles to contract.
Explanation:
The heart contracts thanks to a series of electrical impulses that travel through the muscles of this organ. The electrical impulse begins in the SA (sinoatrial) node and is transmitted to the muscles that conform the left and the right atria to produce their contraction which will make the atria pump the blood to the ventricles. When the electrical impulse reaches the AV node and then the Bundle of His, this information will transmit to both ventricles and will produce their contraction as well.
The only muscle tissue capable of stimulating their own contractions is the muscle in the heart, the myocardium, thanks to the existence of "pacemaker cells" that are located in the SA node.
The waves in the ECG represent the depolarization of the atria, depolarization of the ventricles, and repolarization of the ventricles.
Answer:
Eukaryotic cell
Explanation:
In the given question, when the chromosomes were observed, the number of chromosomes was found to be 48 but are present in the homologous pairs that are 24 pairs are observed.
Since the chromosomes are observed as a homologous pair which is a characteristic feature of a eukaryotic cell. The prokaryotic cells just possess one chromosome which is circular in shape.
Since the observed cell possesses the chromosomes as homologous pairs, therefore the cell is a eukaryotic cell.
Answer:
Statement like this 'If the wound edges are red or raised, you should call your doctor." need to be clarified by a nurse preceptor.
Explanation:
Suture is a thread-like material or a stitch which is used to hold together or sew tissue or surgical incision together.
A nurse preceptor is a nurse that is highly experienced and known to be competent, playing a role as a role- model or point of call either to a newly employed staff nurse or a nurse that has just been posted to a new unit or section, where he/she has no experience about.
In this case , the novice nurse must clarify the statements from the the nurse preceptor before disseminating it to the client. This is very important , in order to avoid a negative aftermath effects.
