Energy Flow

Which organism receives the least amount of energy from the producers?

• Hawk

• Rabbit

• Grasshopper

• Mouse

The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?

• Decomposers

• Consumers

• Producers

• Inorganic nutrients

Which of the following statements is true about natural systems?

• Producers are at the bottom level of both the energy pyramid and the biomass pyramid.

• Consumers form the bottom levels of both the energy pyramid and the biomass pyramid.

• Producers are at the bottom of the energy pyramid, but at the top of the biomass pyramid.

• Consumers are at the bottom of the energy pyramid, but at the top of the biomass pyramid.

Which of these organisms would most likely be found at the top of an energy pyramid?

• clams - a primary consumer

• sardines - a primary consumer

• sharks - a apex predator

• kelp - a primary producer

How many Joules ( J ) of energy would you find at the top consumer level if you start with 1000J at the producer level? Hint: 10% Rule

• 10000 J

• 10 J

• 1 J

• 300 J

How much energy will we find at the secondary consumer level if we start with 2400 kcal? Hint: 10% rule

• 240000 kcal

• 2.4 kcal

• .24 kcal

• 24 kcal

How much energy is available to be passed on to the next trophic level in an ecosystem?

• 100%
• 10%
• 50%
• 75%

Tags

NGSS.MS-LS2-3

Examples of producers:

• flies, fungus, and termites
• plants and organisms capable of chemo or photosynthesis
• lions, deer, and shrubs

Tags

NGSS.MS-LS2-3

What's a food web?

• A representation of all the feeding relationships within a community.
• A way of showing how matter and energy pass from one organism to another.
• A food chain provides a more complete model of feeding relationships within a community.

A food web is made up of 

• one food chain.
• only producers.
• many different food chains.

Tags

NGSS.MS-LS2-3