Choose the One Most Appropriate Answer for Each.​

question 69

Multiple Choice

Choose the one most appropriate answer for each.​
-polar body

• A)​the production and secretion of milk
• B)​sloughing off of endometrium stops permanently
• C)​product of oogenesis but does not play a role in reproduction
• D)​mature egg
• E)​the burrowing of the blastocyst into the uterine lining
• F)​the release of an egg from the ovary
• G)​the release of seminal fluid from the male reproductive tract
• H)​a 100-percent-effective method of preventing conception
• I)​a highly unreliable form of birth control
• J)​the periodic elimination of the uterine lining
• K)​characterized by involuntary muscle contractions, release of tension, and warmth
• L)​sexual intercourse
• M)​sperm and egg cannot meet because a section of oviduct is missing
• N)​cutting and tying of vas deferentia

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Definitions:

Spurious Relationship

A false or misleading correlation between two variables that appear to be connected but are actually related due to the presence of a third, hidden factor.

Control Variable

A variable that is kept constant during an experiment to ensure that any changes in the outcome are due to the independent variable.

Independent Variables

Factors in a study or experiment that are altered or adjusted in order to examine their impacts on the variables that depend on them.

Dependent Variables

In research, these are the variables that are tested to see if they are affected by changes in independent variables, essentially the outcome of interest.