Science 10 - Sustainability Unit Crossword

An animal that feeds on other animals.
A living factor in an ecosystem.
A step by step sequence linking organisms that feed on each other.
An organism that uses photosynthesis to make its own food.
The conditions required for the survival of a species.
A species no longer exists.
The collection of all the populations of different species within an ecosystem.
Waste from from plants and animals.
A non-living factor in an ecosystem.
A producer.
An organism that feeds on the waste from plants and animals.
A defined area containing a variety of species of organisms.
A species close to extinction.
An organism that eats other plants or animals for its survival.
An organism that eats only plants.
A species no longer exists in part of its range.
A representation of the feeding relationships among organisms in an ecosystem.
An animal that eats both plants and animals.
A species likely to become endangered if factors that make it vulnerable are not reversed.
A species that is not in immediate danger of extinction but is at risk because of declining numbers.