What Best Explains This Observation: Consumers Directly Use Approximately 20

question 15

Multiple Choice

What best explains this observation: consumers directly use approximately 20 percent of a forest's net primary productivity (NPP) , whereas decomposers directly use approximately 80?

• A)Decomposers are more efficient at obtaining energy than consumers.
• B)Forest ecosystems do not have a very high NPP, so they cannot support as many consumers as other ecosystems can.
• C)Consumers eat only certain parts of organisms, such as fruits or muscle tissue, whereas decomposers obtain energy from the entire body of the food organism.
• D)Secondary consumers eat the primary consumers more quickly than the primary consumers can eat the producers, thus leaving most of the NPP available to the decomposers.

Describe the composition and characteristics of basaltic and felsic magmas and their distribution across different geologic settings.

Interpret the role of hot spots, mantle plumes, and the different types of magmatism they produce.

Comprehend the effects of continental and oceanic mantle plumes on the Earth's surface, including volcanism and plateaus formation.

Acknowledge the significance of water in the generation of magma in subduction zones and other geological processes.

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Definitions:

Complement

In set theory, the complement of a set contains all elements not in the original set within a given universal set. In grammar, it is a word or phrase needed to complete the meaning of an expression.

Obverse

The counterpart or opposite in a relationship, often used in reference to geometric figures or logical propositions.

Proposition

A speech or affirmation that indicates an opinion or assessment, liable to be correct or incorrect.

Obverse

In logic, a method for transforming a proposition by negating both the predicate and the subject, and replacing the predicate with its complement.