ecosystem review

The way living organisms interact with each other in a particular environment/community is called...

• Ecosystem
• Biome
• Habitat
• Abiotic

Tags

NGSS.MS-LS2-2

Non-living things that are a part of a biome is called...

• Habitat
• Abiotic
• Biotic
• Ecosystem

Tags

NGSS.MS-LS2-3

Which one of these is an abiotic factor?

• grass
• tree
• water
• soil

Tags

NGSS.MS-LS2-3

Which belongs to aquatic biome?

• estuary
• savannah
• prairie
• tundra

Tags

NGSS.MS-ESS2-4

What do consumers do in the food chain?

• They obtain energy from other organisms. 
• They break down dead plant and animal material. 
• They use sunlight to make food. 
• They are parasites of plants. 

Tags

NGSS.MS-LS2-3

Many cactus plants have very sharp needles and thorns. How does this help them survive in a desert environment?

• Birds do not build their nests in cactus plants because of the needles.
• The needles and thorns allow the cactus plants to lose excess heat.
• Thirsty animals will not eat the cactus plants to get the water they contain. 
• The needles and thorns help the cactus plants spread their seeds. 

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Why are decomposers in the soil important? 

• Decomposers in the soil convert carbon dioxide to sugars. 
• Decomposers in the soil provide oxygen for plants. 
• Decomposers in the soil provide energy for animals.
• Decomposers in the soil return carbon and nitrogen to the ecosystem. 

Tags

NGSS.MS-LS2-3

A population of small fish and a population of small squids eat the same type of krill (a type of plant) in the same ecosystem. Krill is the main source of food for both the fish and squid. If the squid grows faster than the fish population, what will most likely happen to the fish population? 

• The fish population will stay the same size. 
• The fish population will start to grow faster. 
• The fish population will get smaller or even die out. 
• The fish population will start to eat more krill than the squids. 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following food chains shows the correct energy flow left to right? 

• rabbit-coyote-grass
• grass-rabbit-coyote
• coyote-rabbit-grass
• grass-coyote-rabbit

Tags

NGSS.MS-LS2-3

What role do bacteria play in a pond ecosystem?

• Bacteria are herbivores that make their own food in the ecosystem. 
• Bacteria act as consumers of live fish. 
• Bacteria provide food for frogs. 
• Bacteria are decomposers of dead plants and animals. 

Tags

NGSS.MS-LS2-3