To Achieve Internal Validity, a Researcher Must Design and Conduct

question 4

Multiple Choice

To achieve internal validity, a researcher must design and conduct experiments where only the _____ variable can be the cause of the results.

• A)dependent
• B)independent
• C)confounding
• D)criterion

Comprehend the role of plant hormones in seed germination and dormancy.

Explain the ecological and physiological triggers for flowering and fruit dispersal strategies.

Distinguish between reproductive and nonreproductive parts of a flower.

Grasp the significance of external factors and plant hormones in breaking seed dormancy.

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Definitions:

External Sphincter

A circular muscle that helps to control the passage of substances out of a body cavity or organ, such as the anus or urethra.

Anal Area

The region surrounding the anus, which is the external opening of the rectum, important in the defecation process and subject to various medical conditions.

Steatorrhea

The presence of excess fat in feces, usually indicative of malabsorption issues or diseases affecting the pancreas, liver, or gastrointestinal tract.

Bile Pigment

A component of bile, responsible for the yellow-green color, produced during the breakdown of hemoglobin in red blood cells.