The radioactive tracer (radiopharmaceuticals) is used to assess bodily function and diagnosing and treating the disease. It is made up of carrier molecules bondeed tightly to radioactive atom. Some interact with specific protein or sugar in the body of the person. Radioactive tracer can be administered through intravenous injection, inhalation, oral ingestion, or direct injection into an organ.
Answer:
Genetic Engineering: the direct manipulation of an organisms genes using biotechnology (ex. genetically engineering corn to be insect resistant)
Cloning: The process of producing genetically identical individuals of an organism either natually or artificially,cloning allows for the creation of multiple copies of genes, expression of genes, and study of specific genes (ex. Cloning cells for untreatable diseases)
Artificial Selection: Also known as Selective breeding it is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits/ characteristics (ex. Dog breeding)
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Answer:</h2>
C.
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Explanation:</h2>
This is what we call a permanent magnet. By the way, the magnetic phenomena were first observed about 2500 years ago near the ancient city of Magnesia, what is today Manisa, located in western Turkey, when people saw fragments of magnetized iron. So <em>what happens if you cut a magnet in half? </em>Well, a magnet has two ends, the first one is called a north pole or N pole while the other end is a south pole or S pole, so if you break a bar magnet, each piece has a north and south pole, no matter the size of each new bar although the smaller the piece, the weaker its magnetism. This is true because unlike electric charges, you always find magnetic poles in pairs, that is, ¡they can't be isolated! The option is C. because in the great bar the north pole is to the left while the south pole is to right.
Answer:
Explanation:
Given
Electrostatic force between two electrons is equal to weight of one electron
i.e.
where 
are the charge of particles
mass of electron
r=distance between them
