The four systems that describe the functions of the circulatory systems are:
- oxygen is delivered to cells throughout the body by this system
- This system removes carbon dioxide from organs & delivers it to the lungs.
- Carbon dioxide exits the body through this systems
- This system's organs pass oxygen into the bloodstream.
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What is the circulatory system?
The circulatory system can be referred to as a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of humans or other vertebrates.
The circulatory system includes the cardiovascular system, also known as the vascular system which consists of the heart and blood vessels.
Learn more about circulatory systems at:
brainly.com/question/3447829
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Answer:
I recommend trying to photo memory it, if not repeat it in your head to the point where its the only thing you're thinking about.
Explanation:
It works for me :))
For radioactive materials with short half-lives, you use a very sensitive calibrated detector to measure how many counts per second it is producing. Then using the exact same set up you do the same at a latter time. You use the two readings and the time between them to determine the half-life. You don’t have to wait exactly a half-life, you can do the math with any significant time difference. Also, you don’t need to know the absolute radioactivity, as long as the set up is the same you only need to know fraction by which it changed.
For radioactive materials with long half-lives that won’t work. Instead you approach the problem differently. You precisely measure the mass of a very pure sample of the radioactive material. You can use that to calculate the number of atoms in the sample. Then you put the sample in a counter that is calibrated to determine the absolute number of disintegrations happening in a given time. Now you know how many of them are disintegrating every second. You use the following equations:
Decays per Second = (Number of Atoms) x (Decay Constant)
Half-life = (Natural Log of 2) / (Decay Constant)
And you can calculate the half-life
Hope it helps :)
Mark it as brainliest pls :)
<span>Exudate
This is any bodily liquid that channels from the circulatory framework into sores or territories of irritation. It can be a discharge like or clear liquid. At the point when damage happens, leaving skin uncovered, it spills out of the veins and into adjacent tissues</span>
Answer:
2. The pathogen must be isolated from inoculated animals and must be different from the original organism.
Explanation:
Koch postulates says that every disease is caused by a pathogen. That pathogen can be isolated from the host and can be grown in pure culture. If this pure culture is inoculated into a healthy host than it must cause the disease in that host. The same pathogen can be again isolated from the second host.
Therefore according to Koch's postulated the pathogen must be isolated from the inoculated animals and must be the same as the original organism therefore the second option is wrong.
