Why Did the Researchers Induce Cancer in Mice by Injecting

question 61

Multiple Choice

Why did the researchers induce cancer in mice by injecting cancer cells,instead of just doing the experiment on isolated cancer cells in culture?

• A)Cancer cells can go through angiogenesis in culture
• B)Cancer cells cannot be grown outside of the body in culture
• C)Angiogenesis occurs in a whole organism
• D)Tumor suppressors are only active in whole tumors
• E)Oncogenes are only active in whole tumors

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Definitions:

Short Run

A period in which at least one factor of production is fixed, limiting the ability of a business to fully adjust to changes in market conditions.

Economic Profit

The differentiation between a business entity's gross revenue and its comprehensive costs, factoring in both explicit and implicit expenses.

Purely Competitive

Describes a market structure where many firms sell identical products, and no single seller can influence the market price.

Short Run

Within the field of economics, a timeframe where a company has at least one input that remains constant and unalterable.