Cycling of Matter and Energy

Trophic Levels show the

• what grade each organism has achieved in the ecosystem

• position that an organism occupies in a food chain - what it eats, and what eats it

• part of the triangle the organism likes the most

• elevation the organism likes to live in

Tags

NGSS.MS-LS2-3

The trophic pyramid is a triangular shape because

• 90% of energy is lost to heat, movement, and survival, and only 10% of energy goes to the next level

• People see the top of the pyramid so it is important to know the keystone species.

• 10% of energy is lost to heat, movement, and survival, and only 90% of energy goes to the next level

• the top of the pyramid is the pinnacle organism of an ecosystem

Tags

NGSS.MS-LS2-3

Biomass is

• The mass of nonliving organisms in an area or ecosystem at a given time

• All the waste produced by organisms in an area

• The mass of living organisms in an area or ecosystem at a given time

• The energy in an ecosystem

Tags

NGSS.MS-LS2-3

Producers obtain their energy by

• the process of hunting for prey

• the process of eating plants

• the process of photosynthesis to make their own food from sunlight

• the process of breaking down once living things

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

All living parts of an ecosystem (plants, animals, and decomposers) are depend on one another for

• food

• energy

• cycling matter

• food, energy, and the cycling of matter

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Photosysnthesis and respiration are important because

• they make mutualism possible

• they are the building blocks of life

• they are the 6 characteristics of life

• they cycle matter and energy between autotrophs and heterotrophs

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

The food web shows

• many possible interactions and feeding relationships beween the organsims in the ecosystem

• a nice picture of what lives in the ecosystem

• the symbiotic relationships

• the keystone species

Tags

NGSS.MS-LS2-2

Which level would have the most biomass?

• Producers

• Primary consumers - herbivores

• Secondary consumers- carnivores

• Quaternary consumers- Apex Predators

Tags

NGSS.MS-LS2-3

Which consumers gets the most energy from the producers?

• Shark
• Herring
• Phytoplankton
• Crustaceans

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following is an organic compound?

• NH₄
• CH₂OH
• Na Cl
• CuSO₃

Tags

NGSS.HS-LS1-6