Laws of Thermodynamics in Ecosystems Assessment

What do the laws of thermodynamics describe in an ecosystem?

• Energy flow

• Water cycle

• Nutrient absorption

• Population growth

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-PS3-4

What is a key concept of the 2nd law of thermodynamics in ecosystems?

• Energy creation

• Energy conservation

• Energy loss as heat

• Energy multiplication

Tags

NGSS.MS-PS3-4

What do secondary consumers feed on?

• Producers

• Primary consumers

• Decomposers

• Tertiary consumers

Tags

NGSS.MS-LS2-3

Which law of thermodynamics is the focus of the diagram?

• 1st Law

• 2nd Law

• 3rd Law

• 4th Law

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What does the term "entropy" refer to in the context of energy transformation?

• Order

• Disorder

• Energy gain

• Energy storage

Tags

NGSS.HS-PS3-4

What is the significance of energy loss in the form of heat?

• It is stored for later use

• It is used in endothermic reactions

• It is converted to light

• It is absorbed by producers

Tags

NGSS.MS-PS1-4

What do the arrows in food chains and food webs represent?

• The arrows point in random directions.

• The arrows point to what will be eaten.

• The arrows point in the direction the life cycle moves.

• The arrows point in the direction the energy flows.

Tags

NGSS.MS-LS2-3

Which is true about the first (bottom) trophic level in an energy pyramid?

• It has the most available energy and includes all consumers
• It has the most avaliable energy and includes all producers
• It includes primary consumers (heterotrophs), which are known as herbivores
• In includes primary consumers (autotrophs), which are known as herbivores

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The TROPHIC LEVEL of an organism is the position it occupies in a food chain, food web or ecological pyramid. The transfer of food (or energy) takes place from one organism or trophic level to another organism or trophic level.

Which tropic level does the snake occupy?

• PRODUCERS

• PRIMARY CONSUMERS

• SECONDARY CONSUMERS

• TERTIARY CONSUMERS

Tags

NGSS.MS-LS2-3

Which of the following definitions bests describes a CONSUMER?

• Any kind of green plant that, through the process of photosynthesis, makes its food by taking sunlight and using the energy to make sugar.

• An organism that requires energy that it obtains by eating other organisms.

• An organism that requires energy that it obtains by breaking down dead or decaying organic materials.

• The major source of energy for organisms and the ecosystems of which they are a part.