IMO Practice Test — Food Chains & Habitats
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
Why is the order 'tiger to deer to grass' wrong?
The arrows should point from food to eater
Tigers eat grass
Grass eats deer
It is too short
Explanation: Energy flows from the plant up, so arrows go grass to deer to tiger.
Question 2 of 6
hard
Why do different habitats have different kinds of animals?
Animals dislike travel
Animals choose colours
All habitats are the same
Each animal's body suits its own habitat
Explanation: Animals are suited to the habitat they live in.
Question 3 of 6
hard
If hunters remove all the tigers from a forest, deer may become so many that they…
Turn into tigers
Disappear at once
Eat up all the plants
Stop eating
Explanation: Without predators, prey grow too many and over-eat plants.
Question 4 of 6
hard
The Sun is important to producers because it gives…
Light to make food
Meat
Water only
Soil
Explanation: Producers use the Sun's light to make food.
Question 5 of 6
hard
An animal can be both predator and prey. A frog eats insects but is eaten by a snake. So the frog is…
A plant
Only a predator
Only prey
Predator to insects, prey to the snake
Explanation: The frog hunts insects yet is hunted by snakes.
Question 6 of 6
hard
A pond drying up is a problem for frogs because it destroys their…
Habitat
Colour
Sound
Name
Explanation: Losing the pond means losing their habitat.