Life on Earth Flashcards
(28 cards)
The place where an organism lives is its
Habitat
All the organisms of one species in a ecosystem is a
Population
All the living organisms in a habitat are known as a
Community
What do we call a group of organisms that can interbreed to produce fertile offspring
Species
The variety of living things in an ecosystem is known as
Biodiversity
What makes up an ecosystem
All the living things and their environment
What is a predator
An animal that hunts and eats another animal for food
What do we call animals that are hunted by a predator
Prey
What is the other name for a green plant
Producer
What do we call animals that obtain food by feeding on other organisms
Consumer
What is the term for ‘the role an organism plays in its community
Niche
What do you arrows in a food chain represent
The direction of energy flow
Why do food chains always start with green plants
Because they are producers
Name 3 ways that energy can be lost from a food chain
Heat, movement and human waste
What diagram shows a number of food chains linked in an ecosystem
Food web
What does a pyramid of numbers show
Number of organisms at each stage
What does a pyramid of energy show
Represents the energy available each stage of the food chain
What occurs in ecosystems when resources are in short supply
Competition
Name the type of competition that occurs amongst individuals of different species
Interspecific
Name the type of competition that occurs amongst individuals of the same species
Intraspecific
Name three abiotic factors
Light intensity, moisture and pH
Name three biotic factors
Disease, predation and competition
How can you minimise error when using a moisture meter
Wipe the probe clean between each use
Name the equipment used to sample plants
A quadrat
