​Alligators More Closely Resemble Lizards Than Birds; However, Alligators and Birds

question 81

Multiple Choice

​Alligators more closely resemble lizards than birds; however, alligators and birds have four-chambered hearts, which lizards do not have. In this example, the four-chambered heart is a ____, which indicates that alligators are ____ related to birds than to lizards.

• A) ​derived character; more closely
• B) ​key innovation; more closely
• C) ​derived character; more distantly
• D) ​key innovation; not
• E) ​homologous structure; more distantly

Analyze and interpret scatter plots and residual plots for assessing the fit of a linear regression model.

Calculate and interpret the slope and intercept of the least-squares regression line.

Understand the significance of the p-value in hypothesis testing relating to the slope of the regression line.

Apply Pearson's Correlation to examine the strength of the relationship between two variables.

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Definitions:

Babbling

An early stage of language development in infants, characterized by repetitive sounds and syllables without specific meaning, as a precursor to speech.

Syllables

Units of pronunciation having one vowel sound, with or without surrounding consonants, forming the whole or a part of a word.

Holophrasing

The use of a single word to express a complex idea, often observed in the early language development stages of children.

Cooing

The early vocalization of infants, consisting of soft, murmuring sounds, particularly when content or as an early form of communication.