Ecology

According to the food web, which of the following organisms can be classified into more than one trophic level? 

• grasshopper
• owl
• rabbit
• frog

Tags

NGSS.MS-LS2-2

Which of the following correctly lists the flow of matter in the food web above?

• plants, animals, nematodes, arthropods

• animals, nematodes, arthropods, plants

• plants, nematodes, arthropods, animals

• nematodes, plants, arthropods, animals

Tags

NGSS.MS-LS2-3

Based on the food web shown above, which of the following is most likely responsible for the rabbit population trend as shown in the graph? 

• increase in amount of grass
• decrease in amount of grass
• overpopulation in squirrel population
• increase in rabbit population

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Tell if the item is an abiotic factor or biotic.....

TREE

• Abiotic

• Biotic

Tell if the item is an abiotic factor or biotic.....

Water

• Abiotic

• Biotic

Abiotic factors in the environment are all __________. 

• living
• nonliving

Tags

NGSS.MS-LS2-3

Algae, grasses and trees are all __________.

• decomposers

• consumers

• producers

• pyramids

Tags

NGSS.MS-LS2-3

A trophic level represents a _________. 

• consumer
• feeding level
• speeding level
• cooking level

Tags

NGSS.MS-LS2-2

What is the source of energy that flows through most of the food chains on Earth?

• plants
• the sun
• temperature
• wind

Tags

NGSS.MS-LS1-6

What is the definition of an ecosystem?

• A group of animals of the same species living in the same place.

• All the plants and animals living in the same place.

• All organisms living in the same place and the abiotic factors that affect them.