In Science, an Explanatory Device That Connects Multiple Scientific Findings

question 166

Multiple Choice

In science, an explanatory device that connects multiple scientific findings is called a(n)

• A) scientific theory.
• B) scientific hypothesis.
• C) metaphysical claim.
• D) rationalization.

Recognize the association between specific bacteria and diseases such as periodontitis and atherosclerosis.

Distinguish between self and non-self entities using T cell receptors and Major Histocompatibility Complex (MHC) markers.

Understand the targets and mechanisms of drugs used in AIDS treatment.

Know the primary immunoglobulins present in gland secretions and their functions.

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Definitions:

Depreciation Expense

The allocated amount of the cost of a tangible fixed asset written off as an expense in the company's accounts over its useful life, reflecting the asset's consumption or loss of value.

Contribution Margin

The difference between sales revenue and variable costs, indicating how much contributes toward covering fixed expenses and generating profit.

Variable Selling Costs

Expenses that vary directly with the volume of products sold, such as commissions and shipping fees.

Break-Even Point

The level of production or sales at which total revenues equal total costs, resulting in no profit or loss.