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unequal warming and cooling of land and sea
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<span>The answer is nuclear imaging. A subject is asked to take in a radionuclide (radioactive
isotopes) and as the radioactive material passes though the body, it continually emits radiation that is detectable by an instrument such as a gamma camera. Examples of nuclear imaging
techniques are SPECT and PET.</span>
When a person is startled by a nearby car horn, the sympathetic nervous system will increase its activity. This part of the nervous system will activate the person's fight-or-flight response. It will help the person decide whether to fight aggressively or to flee quickly. In this case, it will tell the person to quickly move away from the car.
The answer is C. It states that energy can only be moved from object to object.
Answer:
A scientific theory refers to the possible explanation of the natural event. It can be tested repeatedly and can be verified by anyone with the help of predefined sets of protocols and scientific experimentation.
Similarly, Darwin proposed the idea of natural selection as the mechanism of evolution.
Various experiments in labs, as well as observations made under natural conditions, proved that natural selection plays a major role in the evolution.
Examples may include industrial melanism of peppered moths, long neck of Giraffe, different shapes and sizes of beaks of Darwin finches et cetera.
This is why natural selection is considered a theory now.
