Answer:
The pacemaking signal generated in the sinoatrial node travels through the right atrium to the atrioventricular node, along the Bundle of His and through bundle branches to cause contraction of the heart muscle.
Hey there! I believe the answer is the fourth option: D. Four haploid cells
Hope this helps! :)
ANSWER: Janice's observation that is explained by Hypothesis I but not by Hypothesis II is that <u>shortly after the candle was covered by the glass beaker, the flame diminished and soon went out.</u>
REASONING:
Hypothesis I mentions oxygen as an important part of the chemical reaction that causes certain objects to burn. By placing the glass beaker over the candle, the oxygen supply is cut off. Once the oxygen inside the beaker is consumed, the flame diminishes and goes out.
Hypothesis II does not mention oxygen as an important part of the chemical reaction.
Red-shifted
This is because the golf length is getting bigger, and a bigger golf length is corresponding with red.
