Simplify
- $$3 + ( - 17 ) - ( - 19 ) - 2 + 8$$

question 79

Multiple Choice

Simplify.
- $$3 + ( - 17 ) - ( - 19 ) - 2 + 8$$

• A) \(- 5\)
• B) 15
• C) 11
• D) \(- 23\)

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Definitions:

Trophic Levels

The hierarchical levels in an ecosystem, determined by the feeding position of organisms in food chains.

Energy Loss

The reduction in energy as it moves through the trophic levels of an ecosystem; often described in the context of the inefficiency of energy transfer between levels.

Tertiary Consumers

Carnivores that eat secondary consumers; they are often apex predators in their ecosystems.

Secondary Consumers

Organisms that feed on primary consumers in an ecosystem; they are typically carnivores or omnivores.