Ecosystems
is the continuous process by which water moves from Earth’s surface to the atmosphere and back.
Water Cycle
Plants need light, water, and carbon dioxide for photosynthesis. This is an example of an organism interacting with -
abiotic factors
Plant->Bettle->Fish
Food Chain
Mushrooms and bacteria are common
Decomposers
What is mutualism?
Close relationship where both organisms benefit
In ecosystems, producers, consumers, and decomposers are linked by their roles in recycling ___________ and oxygen
Carbon
What shows how food chains work in an ecosystem?
A food web!
What is the largest ecosystem on Earth?
ocean
moves through an ecosystem when one organism eats another.
Energy
An interaction between organisms or species that is helpful to both.
Mutually beneficial interaction
Which organism is a first-level consumer?
coyote, hawk or grasshopper
grasshopper
What does omnivore mean?
Animal that eats both plants and animals
What are the 4 types of harmful human activity?
pollution, overfishing, forest fires, deforestation
The most energy is available at the_______________ level of the pyramid.
Top
When two or more individuals or populations attempt to obtain a single resource.
Competitive interaction
Energy enters most ecosystems as
Sunlight
What does herbivore mean?
animal that eats plants only
Caterpillars are what level of a consumer?
primary consumer
Any relationship in which two different species use each other to live is called
Symbiosis
What is the organism that is harmed in a parasitic relationship?
host
An organism that can make its own food is a
Producer
What does carnivore mean?
Animal that eats meat only
Almost all food chains begin with this
The sun
What is the place where all the living and non-living things interact?
An ecosystem!
What is the type of symbiotic relationship that helps one organism, but does not harm or help the other?
commensalism