An ecosystem is the living organisms in a particular area together with the non-living components of the environment, such as soil, air and water. An ecosystem is biodiverse if it contains many different species.
What is an ecosystem?
Populations of organisms in their environment
All the organisms of the same or closely-related species
Two or more populations of organisms
What are animals that hunt and kill others for food called?
Which of these are abiotic factors?
Light intensity and new predators
Temperature and soil pH
Food and new pathogens
Which of these are biotic factors?
Dissolved oxygen and carbon dioxide levels
Wind intensity and soil pH
Food and new predators
Which of these statements is true for well functioning predator-prey cycles?
The number of prey increases at the same time as the number of predators
There are always more prey than predators
There are always more predators than prey
What type of traps catch small animals in trees?
What is interdependence?
Humans depending upon other organisms for food
No organisms in an ecosystem depending upon each other
All organisms in an ecosystem depending upon each other
What is a transect?
A square wire placed on the ground to count plants
A line used as a part of systematic sampling
Working out where to place a quadrat using coordinates
Which of the following would help to conserve a species of animal?
Removing a single animal from the wild and keeping it in captivity in a zoo
Being transferred to a zoo where it could mate with another of its species
Removing animals from the habitat where they are endangered, and transferring them to another habitat
Which of the following would explain the comma butterfly spreading north in the UK over the last 50 years?
The increase in the number of birds that eat the comma butterfly
People releasing the butterflies in their gardens
Climate change providing warmer conditions in the north of the UK