Vocabulary
Sunlight, water, and dirt are considered __________ factors in a ecosystem.
abiotic
These organisms make energy through photosynthesis or chemosynthesis. (Give both possible names)
producers or autotrophs
Organisms that are able to reproduce with each other make up a ________.
species
A relationship between two species in which one species benefits and the other is neither helped nor harmed.
commensalism
The organism that a parasite lives in or on in a parasitism interaction.
host
Living factors in a ecosystem are called _______.
biotic
These organisms are herbivores, therefore they are called ______________ consumers.
primary
All the organisms of the same species living in an area make up a _________.
population
A relationship between two species in which one species benefits and the other is harmed.
parasitism
What type of interaction is a bird building a nest in a tree?
commensalism
Something that only eats plants is called a _________.
herbivore
Organisms at the top of a food web are usually _______. (Choose from below)
herbivores carnivores omnivores
carnivores
All the different species of organisms living in an area is called a ________________.
community
A relationship between two species in which both species benefit.
mutualism
What type of interaction is a bee getting nectar from a flower?
mutualism
An organism that breaks down wastes and dead organisms is a _________.
decomposer
A food chain or food web always starts with a ________.
producer or autotroph
Two factors that decrease a population are _______ and _______.
disease, emigration, natural disasters, etc.
An interaction in which one organism kills another for food.
predation
What type of interaction is a spider catching a fly in its web?
predation
A series of events in which one organism eats another and obtains energy is called _________ _______.
food chain or web
What is the percentage of energy LOST as it moves through a food chain?
90%
Ecology is the study of the __________ between all the organisms in an area and the the organisms and their environment.
interaction
Two or more organisms fighting for the same resource.
competition
What are 4 factors that organisms compete for in an ecosystem?
food, water, shelter, mate, space, etc.