A Student Encounters a Pondweed That Appears to Be a Charophyte

question 27

Multiple Choice

A student encounters a pondweed that appears to be a charophyte. Which of the following features would help the student determine whether the sample comes from a charophyte or from some other type of green alga?

• A) molecular structure of enzymes inside the chloroplasts and presence of phragmoplasts
• B) molecular structure of enzymes inside the chloroplasts and rings of cellulose-synthesizing complexes
• C) structure of sperm cells and presence of phragmoplasts
• D) structure of sperm cells, presence of phragmoplasts, and rings of cellulose-synthesizing complexes

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Definitions:

Negative Correlation

When the value of one variable decreases as the value of the other variable increases.

Scatterplot

A type of data visualization that uses dots to represent values obtained for two different variables, one plotted along the x-axis and the other plotted along the y-axis.

Regression Equation

A statistical method represented by an equation that models the expected value of a dependent variable as a function of one or more independent variables.

Scatterplot

A type of graph used in statistics to display values for typically two variables for a set of data.