Biologists Studying a Clade of Birds Are Interested in Whether

question 106

Multiple Choice

Biologists studying a clade of birds are interested in whether a morphological feature of this clade is ancestral or derived.Which approach would best address this question?

• A) More detailed morphological analysis of that trait, such as can be determined with a CT scanner
• B) Determining the genetic basis of the trait
• C) Use of the fossil record, especially near the root of the tree
• D) Focusing on the ingroup
• E) DNA analysis

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Definitions:

Maturity

The date on which the principal amount of a financial instrument, such as a bond or loan, is to be paid back in full.

Current Yield

The annual income (interest or dividends) divided by the current price of the security, often used to compare the return on investment of different securities.

Par Value

The nominal or face value of a bond, share of stock, or other financial instrument.

Maturity

The final payment date of a loan or other financial instrument, at which point the principal (and all remaining interest) is due to be paid.