A population of wolves decrease over time. Choose all of the following factors that could have caused the wolf population to decrease.

• increase in predators

• increase in food

• natural disasters

• increased competition for shelter

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Sunflowers use sunlight to produce their own food through the process of photosynthesis. Which term describes sunflowers?

• first level consumer

• decomposer

• producer

• heterotroph

Tags

NGSS.MS-LS1-6

Lions in the savanna rely on antelope as a primary food source. If the antelope population decreases, the lions may struggle to find enough food. This scarcity of prey is an example of ______ acting as a(n) _______ factor that could stop the lion population from growing.

• shelter; biotic factic

• space; abiotic factor

• space; limiting factor

• food; limiting factor

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Looking at the organisms, where is the most energy available?

• the hawk

• the grass

• the rabbit

• the smake

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which organism gets the least amount of energy?

• hawk

• mouse

• rabbit

• grasshopper

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In a lake ecosystem, where would the algae be located on the energy pyramid?

• D

• C

• B

• A

Tags

NGSS.MS-LS2-3

Which of the following food chains is correct?

• Grass → Rabbit → Hawk → Snake
  
  
  

• Algae → Fish → Seal → Shark

• Corn → Cow → Wolf → Rabbit

• Grass → Tree → Rabbit → Fox

Tags

NGSS.MS-LS2-3

Which of the following activities increases the amount of carbon dioxide in the atmosphere?

• planting trees

• driving gasoline-powered cars

• cutting down trees

• running for exercise

Tags

NGSS.MS-ESS3-4

Which part of the water cycle involves water turning from a gas into a liquid?

• evaporation

• condensation

• precipitation

• runoff

Tags

NGSS.MS-ESS2-4

Which of the following are true about the nitrogen cycle? Select all that apply.

• Animals obtain nitrogen by consuming plants or other animals.

• Nitrogen is released back into the atmosphere during decomposition.

• Nitrogen is changed into a usable form by bacteria.

• Plants absorb nitrogen directly from the atmosphere.

Tags

NGSS.MS-LS2-3