Energy Transfer

How many primary consumers are there in this food web?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-LS2-3

What percentage of energy is passed on to each tropic level?

• 10%
• 50%
• 90%
• 100%

Tags

NGSS.MS-LS2-3

How do producers obtain energy?

• They conduct photosynthesis.
• They consume plants.
• They consume primary consumers.
• They consume secondary consumers.

Tags

NGSS.MS-LS1-6

If the sun produced 60,000 joules of energy for the producers, how much energy would be transferred to the secondary consumers? (move the decimal)

• 6,000
• 600
• 60
• 6

Tags

NGSS.MS-LS2-3

After the organism has used enough energy for life processes, what happens to the rest of energy?

• Energy Dissapears
• Energy is Recycled
• Energy is Released as Heat
• Energy is Released as Cold Air

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

What is the difference between the movement of energy and the movement of nutrients (carbon, oxygen, water) in a food web?

• Energy flows in one direction, and nutrients recycle.
• Nutrients flow in one direction, and energy recycles.
• energy transform into nutrients, and Nutrients transforms into energy.
• Energy and Nutrients are not related.

Tags

NGSS.MS-LS2-3

A team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the feeding patterns the ecologist observed. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?

• There is less energy available in the producers because their tissues are less dense than those at higher trophic levels.
• There is more energy available in the second trophic level because less energy is needed for hunting compared to the higher trophic levels. 
• There is more available energy in the birds of prey because they have greater muscle mass for storing energy than organisms in lower trophic levels have. 
• There is less available energy in the fourth trophic level because of the loss of energy through metabolism in each of the lower trophic levels.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

A diagram of a food web is shown below.Which organism receives the least amount of energy from the producers?

• Hawk
• Rabbit
• Grasshopper
• Mouse

Tags

NGSS.MS-LS2-3

The diagram shows the cycling of nutrients in an ecosystem. The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system? 

• Producers
• Consumers
• Decomposers
• Inorganic nutrients

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The energy transfer in an food web indicated that there are 760 joules of energy at the tertiary consumer level. What would be the amount of available energy from the sun at the producer level?

• 700 joules

• 760,000 joules

• 76 joules

• 7.6 joules