Some Globular Clusters Have Three Main Sequence Tracks

question 29

Multiple Choice

Some globular clusters have three main sequence tracks. This indicates:

• A)three different stellar compositions.
• B)three episodes of star formation, separated by billions of years.
• C)stars evolve through three different mechanisms.
• D)the stars were observed from three different telescopes.

Recognize the physiological and biochemical processes involved in chemical digestion.

Understand the roles of different organs in the digestive process.

Comprehend the functions and effects of bile in digestion.

Gain knowledge of the sequence and process involved in food digestion and nutrient absorption.

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Definitions:

Stranger Anxiety

An infant’s fear of and wariness toward strangers; it tends to appear in the second half of the first year of life.

Unsmiling

Displaying a serious or stern expression, without smiles.

Cheerful

Exhibiting a disposition that is full of joy and optimism.

Reflexive Smiling

An involuntary smile, often occurring in infants, that does not necessarily express happiness or response to social interactions.