AP Environmental Scienceeasymcq1 pt
In a food chain, energy flows from
A.producers to consumers, decreasing at each level
B.consumers to producers in a cycle
C.equally through all levels
D.decomposers upward only
Explanation
Core Concept
Energy enters via producers and moves up the chain with roughly 90% lost as heat and respiration per transfer. Flow is one-way, never a cycle.
Correct Answer
Aproducers to consumers, decreasing at each level
More Unit 1: The Living World: Ecosystems practice questions
- hardDetritivores differ from decomposers because detritivores
- easyWhich practice increases the carbon stored in an ecosystem?
- easyHumans are best classified in most food webs as
- easyWhich organism is an autotroph?
- hardIn a grassland food web, removing all decomposers would first cause
Practice more AP Environmental Science questions with full explanations
Practice Unit 1: The Living World: Ecosystems Questions →