Food Chains - exam practice
Food Chains
Question 1 of 3
A new pet food brand is selling insect-based cat food.
The insects in the cat food factory are fed on waste vegetables.
Sketch and label the pyramid of biomass for the food chain that produces food for cats from insects.
Which of the following words correctly describes the vegetables' position in the food chain?
Which of the following words correctly describes the insects' position in the food chain?
Which of the following words correctly describes the cats' position in the food chain?
Some bacteria are decomposers.
These bacteria change organic matter into carbon dioxide and inorganic mineral ions.
Describe how the bacteria do this.
The diagram below shows a food web.
State the number of primary consumers in this food web.
State the number of food chains in this food web.
The mountain lion catches and eats its prey.
Give the name used to describe the lion in this food web.
A pesticide can be used to kill the grasshoppers in this habitat.
Describe the effect that killing grasshoppers would have on:
- the number of grass plants
- the number of mice