Refer to the Figure

question 23

Multiple Choice

Refer to the figure.
The figure shows the relationship between the total autotroph biomass in the ecosystem and the ratio of heterotrophic to autotrophic biomass for lakes, coastal ocean, and open ocean. Based on the figure, at 100 mgC/m² of autotrophic biomass, about how much of the total biomass in lake ecosystems would be expected to be in autotrophs?

• A) 1%
• B) 10%
• C) 50%
• D) 90%

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Definitions:

Newspaper Ad

An advertisement placed in a newspaper to promote products, services, or to convey messages to a large audience.

Follow-up Poll

A subsequent survey conducted to assess changes in opinions or behaviors after an initial poll.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect, serving as the default position to be tested against an alternative hypothesis.

Alternative Hypothesis

In hypothesis testing, the hypothesis that proposes a difference or relationship exists between two variables, as opposed to the null hypothesis.