New Anatomical Traits Typically Arise by Modification of Existing Structures

question 73

Essay

New anatomical traits typically arise by modification of existing structures. This process constrains animal body plans and can produce structures with less than optimal function. Use an example of wings to demonstrate this point.

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Definitions:

General Journal

A primary accounting record where financial transactions are entered before being posted to ledger accounts.

Accounts Receivable

Represents money owed to a company by its customers for goods or services that have been delivered or used but not yet paid for.

Horizontal Analysis

A technique in financial analysis where line items on financial statements are compared across subsequent periods to identify trends or significant changes.

Vertical Analysis

A method in financial analysis where each entry in a statement is listed as a proportion of another item, often used to compare line items over different periods.