The sinoatrial node stimulates the heart. This is what starts the heartbeat. However, the other things listed in the answers also have a part in getting the heart to beat. The previous answer has the correct order of the steps for getting the heart to beat. I’ll focus on what the sinoatrial node does. This node is also called the SA Node. It sends an electrical pulse. This pulse is ...
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The first thing that should show up on the shipping paper should be the identification number, and then proper shipping name. This will tell whoever is receiving the package exactly what is in there, and it will help the shipping companies make sure they know what to do in case of a leak.
The name will make sure they can easily find what to do. The identification number will make sure ...
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This is a metaphor. It’s also a Shakespeare quote. It comes from his play “As You Like It”, Act II scene VII. “As You Like It” is a play about two girls who have grown up together. The father of one of the girls had been banished, but the daughter had been allowed to stay. When the daughter incurs the other man’s displeasure, she is also banished. Hilarity ...
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The fastest reaction rate would come from the zinc powder and 3.0 M HCL (aq). There are two main reasons for this. The first has to do with the ease of access to the hydrochloric acid. If there’s a strip of zinc (or a bar of zinc), it can’t react with all of the zinc at once due to a small surface area.
Powder has a higher surface area because it’s smaller by nature. ...
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This seems to be more of an application of something that a direct question. I mean, I have a student number, but I’m not going to share it. However, this could be a stimulus-response question, in which case, you would want Edward Thorndike. He did work on stimulus-response and stimulus while he worked in psychology.
He thought that intelligence wasn’t community-based, but ...
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The organelle listed here that you would expect to find in a plant cell but not an animal cell would be the chloroplast. This is what makes leaves green during the spring and summer. It takes in the sunlight and releases chlorophyll. There are actually four types of chlorophyll, which is why you get some plants that are light green and others that are incredibly dark green. This is where ...
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The packaging organelle is the golgi apparatus. This organelle takes in items that have been “shipped” into the cell when the cell membrane separates a piece of itself to encapsulate an ion or particle too big to fit through passive transport channels. This organelle also packages things to send out of the cell the same way.
These can include proteins and hormones, ...
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Be2+ stands for Beryllium ion. The element Beryllium has an atomic number of 4. Also, Beryllium is located in group 2 which is the alkaline earth metals. It is also located in period 2. Beryllium is a dark gray color and it is strong. Beryllium 2+ has four protons, 3 neutron and 2 electrons in it. The first time beryl or beryllium was documented was in a book written by Pliny the Elder during ...
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Mesopotamia was so good for growing crops because of one incredible natural phenomena: the fact that whenever the nearby river flooded, it deposited nutrient rich soil. Though the river flooding itself wasn’t good for the crops, the aftermath was.
Most crops will fail with too much water (rice is one exception that needs a lot of water to grow properly), but the nutrient rich ...
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MLA formatting dictates that your works cited page should always list your sources alphabetically. Preferably, this is done by the authors’ last names. However, if an article doesn’t have an author, you are supposed to use the title to put it into alphabetical order. Say you have authors Scott, White, Jamison, Jackson, and Hubert (all last names in this case), and the titles ...
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