Communities and ES's

These are definitions about the natural environment.

.....................interdependent organisms and the physical environment they interact with.

.................... a group of populations living and interacting with each other in a common habitat.

State what they are defining.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Organisms are categorised according to how they obtain their food. Which of the following is correct?

• plant, cow, mushroom

• palm, goat,fungi

• producer, consumer, decomposer

• hopeful, happy, useless

Tags

NGSS.MS-LS2-3

The only producers in an ecosystem are green plants.

True or false

Plants (autotrophs) have a number of important roles in the ecosystem. What are they? Tick all the ones that apply.

• provide food for other life on earth

• look pretty and make us happy

• maintain the balance of gases in the atmosphere

• regulate the hydrological cycle

• provide habitats for animals and reduce soil erosion.

Tags

NGSS.MS-LS1-6

Consumers may be herbivores, carnivores or omnivores. Which of the following is correct?

• 
• 
• 
• All of these are correct.

Decomposers and detritivores are vital because they

• prevent the spread of disease

• clear ecosystems of dead bodies

• release nutrients from DOM and makes them available for plants

• do nothing

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

This is the process of respiration.

True or false

Tags

NGSS.MS-LS2-3

This is the process of respiration.

True or false

Tags

NGSS.MS-LS2-3

Trophic level is the position an organism occupies in the food chain. Which of the following is correct order for the trophic levels.

• maize, grasshopper, lizard, snake

• primary producer, consumer, secondary consumer, tertiary consumer

• primary producer, primary consumer, secondary consumer, tertiary consumer

• tertiary consumer, secondary consumer, consumer, primary producer,

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

The first and second laws of thermodynamics apply to food chains and food webs. They cause the amount of energy in the food chain to remain constant. True or false?

Tags

NGSS.MS-LS2-3

NGSS.MS-PS3-5