Cycling of energy and matter

Ecology is

• study of the interactions between organisms and the environment

• study of organisms

• study of the environment

• study of people

An ecosystem includes

• All living factors

• All nonliving factors

• All nonliving and living factors

• All biomass anywhere

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

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

Which of the following is NOT a "cycle"?

• Water
• Energy
• Nitrogen
• Phosphorus

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

When numerous food chains link to each other in an ecosystem, it is called a(n)

• food chain
• food web
• trophic pyramid
• food cluster

Tags

NGSS.MS-LS2-3

Only __% of energy gets passed on from one trophic level to the next

• 5%
• 10%
• 26%
• 90%

Tags

NGSS.MS-LS2-3

Plants rely heavily on ____ in the nitrogen cycle to incorporate nitrogen into organic compounds

• bacteria
• viruses
• fungi
• oxygen

Tags

NGSS.MS-LS2-3

What are the products (outputs) for photosynthesis? 

• Sugar & glucose
• Carbon dioxide
• Glucose & Oxygen
• Water & Energy

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following energy pyramid represents the flow of energy in the food web shown starting with producers (bottom) to tertiary consumer (top)?

• Grass -> Bird -> Eagle -> Snake
• Grass -> Rabbit -> Bird ->  Eagle
• Eagle -> Lizard -> Worm -> Grass
• Grass -> Worm -> Bird -> Eagle

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2