Radioactive Isotopes Are Useful in Biological Studies Because

question 49

Multiple Choice

Radioactive isotopes are useful in biological studies because

• A) an organism will take in a molecule with the isotope and use it normally, but the radioactive decay can be detected.
• B) an organism will take in a molecule with the isotope but will only use it in a few specific reactions, not the normal ones.
• C) an organism will take in the molecule with the isotope and then remove the isotope by sending it through the excretory system, while replacing the isotope with a normal atom.
• D) they are easily visible and normal atoms are not.
• E) they are easy and inexpensive to use in studies.

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A class in Java that provides methods for performing basic numeric operations such as exponential, logarithm, square root, and trigonometry.

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