Analyzing Energy Flow in Ecosystems

In the energy pyramid here, which organisms have the most energy available? 

• Producers
• Carnivores
• Herbivores
• Top Predator

Tags

NGSS.MS-LS2-3

A food chain/food web is intended to show relationships in an ecosystem. What do the arrows represent?

• The direction of population migration
• Differences in dietary habits
• Progressively smaller organisms
• The direction of the energy flow

Tags

NGSS.MS-LS2-3

The diagram represents different levels of a marine food pyramid. Between which two levels is the greatest amount of energy transferred

• 4 and 5
• 1 and 2
• 2 and 3
• 4 and 5

Tags

NGSS.MS-LS2-3

If additional snakes are introduced into this ecosystem, there will most likely be an immediate decrease in the _________.  

• hawk population
• rabbit population
• wildflower population
• grass population

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which would be the appropriate term for an organism that eats a producer?

• scavenger
• decomposer
• secondary consumer
• primary consumer

Tags

NGSS.MS-LS2-2

Which is NOT a role of the decomposers of the planet?

• feed on and breakdown dead organic matter
• help free up the atoms in dead matter so that they can be cycled and used
• to kill the organisms they feed upon
• They help to enrich the soil with nutrients.

Tags

NGSS.MS-LS2-3

Every food chain must start with a ...?

• producer
• sun
• consumer
• decomposer

Tags

NGSS.MS-LS2-3

A connection of food chains with all the food energy paths in an ecosystem is a ...

• ecosystem
• food web
• food chain
• ecological pyramid

Tags

NGSS.MS-LS2-3

An organism that gets energy from breaking down dead organisms or waste ...

• producer
• consumer
• decomposer
• autotroph

Tags

NGSS.MS-LS2-3

What is a carnivore?

• an animal that gets energy by eating other animals
• an animal that gets energy by eating only plants
• an animal that gets energy by eating both plants and animals
• an animal that makes its own energy through photosynthesis