Life on Earth Flashcards
(30 cards)
The place where an organism lives
Habitat
All of the organisms of one species in a ecosystem is?
Population
All the living organisms in a habitat are known as?
Community
A group of organisms that can interbreed to produce fertile offspring are known as?
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 organism that hunts and eats another organism for food
What do you 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 another organism?
Consumer
What is the term for the role an organism plays in its community?
Niche
What do the arrows in a food chain represent?
The direction of energy flow from one organism to another
Why do food chains always start with a green plant?
Because they are producers
Name three ways that energy can be lost from a food?
Movement
Faecal Matter
Heat
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 at each stage of a food chain
What occurs in ecosystems when resources are in short supply?
Competition
Name the type of competition that occurs amongst individuals of a different species?
Interspecific
Name the type of competition that occurs amongst individuals of the same species?
Intraspecific
Name three abiotic factors
PH
Temperature
Moisture
Light Intensity
Name three biotic factors?
Disease
Food Availability
Predators
Competition for resources
Grazing
How can you minimise error when using a moisture meter?
Wipe the probe between each use/sample
Name the equipment used to sample plants?
Quadrant
