Energy in ecosystems Flashcards
What is a producer?
Green plant that makes food using the sun lights energy
What is a consumer
obtains energy by eating plants and animals
What is the source of energy for all organisms
sun
What is a herbivore?
an organism that gets its energy from eating only plant
What is a carnivore?
organisms that obtain energy by eating only animals
What is a omnivore?
Organisms that obtain energy b eating plants and animals
What are predators
An animal that naturally preys on others
What is prey
An animal that is hunted and killed by another for food
What do the arrows on a food chain show?
The direction of energy flow
Where is the majority of energy in a food chain lost from?
Heat, movement or undigested material
What do organisms use a very small quantity of energy for?
Growth
What does a pyramid of numbers show?
The number of organisms at each feeding level in a food chain
What does a pyramid of energy show?
The energy available at each feeding level in a food chain
Why is the energy available at each level in a food chain decreasing?
Energy is lost as heat, movement and undigested food passing out of organisms
What is the process by which plants make their own food?
Photosynthesis
