A Proficient Engineer Can Easily Design Skeletal Structures That Are

question 52

Multiple Choice

A proficient engineer can easily design skeletal structures that are more functional than those currently found in the forelimbs of such diverse mammals as horses, whales, and bats. The actual forelimbs of these mammals do not seem to be optimally arranged because ________.

• A) natural selection has not had sufficient time to create the optimal design in each case, but will do so given enough time
• B) in many cases, phenotype is determined by genotype and the environment
• C) though we may not consider the fit between the current skeletal arrangements and their functions excellent, we should not doubt that natural selection ultimately produces the best design
• D) natural selection is generally limited to modifying structures that were present in previous generations and in previous species

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Definitions:

Trial Balance

A bookkeeping worksheet in which the balances of all ledgers are compiled into debit and credit columns to ensure that a company's bookkeeping system is mathematically correct.

Straight-Line Depreciation

A technique for distributing the expense of a physical asset across its lifespan in consistent yearly increments.

Book Value

The net value of a company's assets as recorded on the balance sheet, calculated by subtracting liabilities from the total value of assets.

Adjusted Trial Balance

A trial balance prepared after adjusting entries are made, ensuring the accuracy of financial statements by balancing debits and credits.