About 50,000 Animal Species Are Vertebrates,yet Only Some Vertebrates Then

question 35

Multiple Choice

About 50,000 animal species are vertebrates,yet only some vertebrates then went on to evolve four limbs.This tetrapod feature is considered to be a/an ________ of vertebrates.

• A)ancestral character
• B)homologous character
• C)analogous character
• D)derived character

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Definitions:

Complements

Two goods for which an increase in the price of one leads to a decrease in the demand for the other.

Budget Constraints

A representation of the trade-offs between different goods and services that a consumer can afford with their limited income.

Optimum

The most favorable condition or level for growth, reproduction, or efficiency, or the best or most efficient use of resources.

Substitution Effect

The financial concept where consumers opt for cheaper alternatives when prices increase or their income falls.