Predict what happens when a food web changes
5th grade (Year 6 in England) · 16 questions · Common Core: NGSS.5-LS2-1 · England: KS2 Y6 Living things and their habitats, KS3 Biology: Interactions and interdependencies
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Score/ 16
Question 1
True or false? If producers die, every animal in the web is affected.
- A. True
- B. False
Question 2
What is a likely knock-on effect: a new fish is added to a lake and eats the small fish?
- A. insect-eating birds have less food
- B. birds that eat small fish have less food
- C. rabbit numbers rise and more grass is eaten
- D. reef fish lose food and shelter
Question 3
Why is a food web with many links more stable than a single food chain?
- A. Webs have fewer animals.
- B. Chains are always longer.
- C. Webs need no producers.
- D. If one food runs short, animals can eat something else.
Question 4
True or false? Changing one population never affects others in the web.
- A. True
- B. False
Question 5
What is a likely knock-on effect: a new fish is added to a lake and eats the small fish?
- A. rabbit numbers rise and more grass is eaten
- B. insect-eating birds have less food
- C. reef fish lose food and shelter
- D. birds that eat small fish have less food
Question 6
In a meadow, rabbits are eaten by foxes. A disease kills many rabbits. What will probably happen to the foxes?
- A. Their numbers will rise quickly.
- B. They will grow bigger.
- C. They will struggle to find food and their numbers may fall.
- D. They will start eating grass.
Question 7
True or false? Animals that eat many foods cope better when one food runs out.
- A. True
- B. False
Question 8
What is a likely knock-on effect: a new fish is added to a lake and eats the small fish?
- A. reef fish lose food and shelter
- B. insect-eating birds have less food
- C. birds that eat small fish have less food
- D. rabbit numbers rise and more grass is eaten
Question 9
Wolves were brought back to Yellowstone National Park. Deer stopped overeating young trees along rivers. What does this show?
- A. Wolves eat trees.
- B. Trees grow only near wolves.
- C. Deer and wolves never interact.
- D. A change to one predator can affect plants and the whole ecosystem.
Question 10
True or false? More predators always means more prey.
- A. True
- B. False
Question 11
What is a likely knock-on effect: a new fish is added to a lake and eats the small fish?
- A. rabbit numbers rise and more grass is eaten
- B. reef fish lose food and shelter
- C. insect-eating birds have less food
- D. birds that eat small fish have less food
Question 12
In a meadow, rabbits are eaten by foxes. A disease kills many rabbits. What will probably happen to the foxes?
- A. They will struggle to find food and their numbers may fall.
- B. They will grow bigger.
- C. Their numbers will rise quickly.
- D. They will start eating grass.
Question 13
True or false? Animals that eat many foods cope better when one food runs out.
- A. True
- B. False
Question 14
What is a likely knock-on effect: foxes are removed from an island?
- A. rabbit numbers rise and more grass is eaten
- B. insect-eating birds have less food
- C. reef fish lose food and shelter
- D. birds that eat small fish have less food
Question 15
Why is a food web with many links more stable than a single food chain?
- A. Webs have fewer animals.
- B. If one food runs short, animals can eat something else.
- C. Webs need no producers.
- D. Chains are always longer.
Question 16
True or false? Food webs only include animals.
- A. True
- B. False
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