Radioactive Isotopes Are Useful in Biological Studies Because

question 28

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 and send 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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Definitions:

Unsold Goods

Unsold Goods are items that have been produced or acquired for sale by a business but have not yet been sold to consumers.

Inventory

The total value of all the raw materials, work-in-progress, and finished goods that a company holds at any given time.

LIFO Perpetual Inventory System

An inventory valuation method that assumes the last items added to inventory are the first sold, and records inventory changes perpetually.

Cost of Goods Sold

Financial obligations directly linked to the production of a company's saleable goods, covering material and labor costs.