Refer to the Table

question 161

Multiple Choice

Refer to the table. Furnariids are a group of birds consisting of over 290 species found in the neotropics.Researchers constructed the phylogeny (evolutionary tree) for this group and identified five lineages (A to E) .They also collected data on the flight performance (high being the strongest fliers) , dietary breath (high having the widest diet) , and sexual selection (high having the most intense sexual selection) .Based on the data, which lineage should have the highest speciation rate?

• A) Lineage A
• B) Lineage B
• C) Lineage C
• D) Lineage D
• E) Lineage E

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Definitions:

Definite Proportions

A principle stating that a chemical compound always contains its component elements in fixed ratio by mass and does not depend on its source and preparation method.

Relative Masses

A concept referring to how the mass of one particle or object compares to another, often used in chemistry to discuss the atomic mass of elements relative to the carbon-12 standard.

Dalton's Atomic Theory

A fundamental theory proposed by John Dalton in the early 19th century, postulating that elements are composed of indivisible and indestructible atoms which combine in chemical reactions to form compounds.

Whole Number Ratios

Describes the proportionate relationship between elements in a compound, represented by integers.