Answer:
4
Explanation:
The circulatory system includes the blood that has picked up the carbon dioxide from all of the respiring tissues and who also delivered oxygen to them to continue respiring.
The blood will then reach the lung where the carbon dioxide that the tissues released is exchanged for oxygen in the alveoli.
* Blood cells isn't an organ system which makes 1 incorrect.
* Digestive system will in no way bring the blood to the lungs or away from it. This is the circulatory system's job. So 2 is incorrect.
*Lastly, lungs are organs and the question asks for organ systems. So 3 is incorrect.
The statement that "birds build nests to keep the egg warms" describes a result.
The scientific method refers to an arrangement of steps succeeded by scientific investigators to answer particular questions regarding the natural world. It includes making observations, creating a hypothesis, and conducting scientific experiments.
The steps of the scientific method are observation, question, hypothesis, experiment, results, and conclusion. The result illustrates when one report what took place in the experiment. This comprises detailing of all the data and observations made at the time of the experiment.
Maybe changing the experiment up in a different way? So they can see what way works better
If the normal body temperature is 98.6 F then the TOD can be calculated.
<h3>What is time of death prediction?</h3>
The time of death prediction is usually based on the body temperature of the victim or the temperature of certain vital organs in the body.
In this case, we know that a dead body will loose heat at about a degree and half per hour. If the normal body temperature is 98.6 F then the TOD can be calculated.
Learn more about the TOD: brainly.com/question/12446045
The glue has long flexible molecules in it called polymers. These polymer molecules slide past each other as a liquid.
Borax in water forms an ion called the borate ion. When the borax solution is added to the glue solution, the borate ions help link the long polymer molecules to each other so they cannot move and flow as easily.
When enough polymer molecules get hooked together in the right way, the glue solution changes from being very liquidy to a rubbery kind of stuff that we call slime!