WorksheetsYear 7 Ecosystems
Total questions: 20
Worksheet time: 20mins
True or false:
A food web consists of several food chains.
true
false
True or false:
A pyramid of numbers is usually wide at the base and narrow at the top.
true
false
What name is given to the type of organism always found at the beginning of a food chain?
producer
carnivore
consumer
Complete:
Animals that eat other animals are known as ___.
predators
prey
herbivore
carnivore
True or false:
A population is a number of organisms of the same species living in one place.
true
false
Complete:
Food chains show the flow of ___ between organisms.
food
energy
particles
matter
Complete:
Animals that only eat plants are known as ___.
herbivore
carnivore
omnivore
What term is given to the place where an organism lives?
ecosystem
habitat
den
home
Complete:
___ can increase in concentration along food chains, which can have a negative effect on animals further along the food chain. This is known as bioaccumulation.
herbicides
pesticides
weedkiller
True or false:
Examples of abiotic [i.e. non-living] factors include light intensity, pH and temperature.
true
false
Which gas dissolves in water droplets in clouds to form sulphuric acid which forms acid rain?
sulphur dioxide
carbon dioxide
sulphuric dioxide
True or false:
It is generally accepted that the burning of fossil fuels has
contributed to global warming.
true
false
Which gas is most associated with global warming?
oxygen
carbon dioxide
carbon monoxide
sulphuric dioxide
Which of these are adaptations of a freshwater crocodile?
Their eyes are on the top of their head.
They have gills on the side of their head.
They have poisonour spikes on their back.
They have sharp teeth to catch prey.
Adaptations help plants to .... choose two sentence endings
Take in oxygen and carbon dioxide.
Move from place to place.
Capture light.
See in the dim light.
An ___ is a community of interacting organisms and their environment.
adaptation
ecosystem
invasive species
organism
