Hair Is a Character Shared by All Mammals,but Not Found

question 2

Multiple Choice

Hair is a character shared by all mammals,but not found in their ancestral lineage.Hair is therefore considered to be a(n)

• A)clade.
• B)shared ancestral character (trait).
• C)shared derived character (trait).
• D)analogous structure.

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Definitions:

Statistically Significant

A result that is not likely to occur by chance alone, according to a predefined threshold of probability.

Test Statistic

A numerical measure derived from sample observations in a hypothesis testing that aids in deciding whether to discard the null hypothesis.

Obese Males

Men who have a body mass index (BMI) of 30 or higher, which classifies them as obese according to medical standards.

Weight Loss

A reduction in body weight achieved through either voluntary (diet, exercise) or involuntary means (illness).