Ecosystem 1
What is another name for living things?
Biotic Factor
What is another name for non-living things?
Biotic factor + Abiotic factor =
Ecosystem
Rabbit --- Fox
Which direction should the arrow point?
---> right
<--- left
---> right
What is the bottom level of an energy pyramid?
Producers
How much of the prey's energy gets turned into consumer tissue?
10 percent
What do you call an animal that only eats other animals?
Carnivores
What do you call an animal that eats both producers and animals?
Omnivore
What do you call an animal that eats only producers?
Herbivores
Name 4 abiotic factors plants need to survive.
1. soil
2. sunlight
3. air
4. water
What does the energy in a food chain start with?
Sun
What are preys?
Organisms that are eaten by predators
What are scavengers?
Consumer that eats the remains of dead animals that it did not hunt or kill
What do decomposers do?
Break down dead or decaying plant and animal material
What are predators?
What is a food web?
What is a food chain?
The path that energy and nutrients follow in an ecosystem
What is a population?
All members of a single species in an area at a given time
What is a community?
All the living things in an ecosystem
What is a consumer?
Any animal that eats
Why are predators important in food webs and food chains?
They limit the size of prey populations
In an ecosystem the number of producers is _______ than the number of herbivores. Similarly, there are many more herbivores than ___________.
greater; carnivors
How big is an ecosystem?
It doesn't matter, as long as it has both biotic and abiotic factors
What happens when top carnivores are removed from a food chain?
Prey populations are no longer controlled
When prey populations increase in numbers, more producers are required to supply them with energy
Soon there would be less producers to support these organisms
What organism gets its energy from all tropic levels?
Decomposers