Food Webs
Vocabulary
Community relationships
Ecosystem
Misc
100
The ultimate source of energy for most ecosystems and thus most ecological pyramids on Earth
sun
100
Nonliving components of the ecosystem
abiotic
100
This is an organism that lives on or in a host and gets nutrients from that host.
parasite
100
A carnivore that feeds on the bodies of dead organisms, like a vulture
scavenger
100
Organisms that break down dead material and recycle nutrients
decomposers
200
This diagram is a more accurate way to look at energy flow in an ecosystem and is a bunch of food chains all put together
food web
200
Which of the following means all of the living and nonliving factors interacting in the environment:
population, community, ecosystem, or biosphere
ecosystem
200
In this type of relationship both organisms benefit
mutualism
200
There are two types of succession, which type would occur after a fire
primary
200
This process converts sunlight into energy and is the starting of most terrestrial food chains
photosynthesis
300
On the following food web which organism is a secondary consumer?
rat, frog, dragonfly, thrush
300
A group of organisms of the same species in one area
population
300
mistletoe grows on other trees taking nutrients from the tree and hurting it. What type of relationship is this?
parasitism
300
Which organism(s) would have the least amount of energy?
tertiary consumers
300
What is biodiversity
all the living things in an area
400
The type of organisms that are always located at the bottom level of an energy pyramid
producer or autotroph
400
All of different populations in an ecosystem living and interacting together
community
400
There is a type of ant that keeps aphids as livestock. The ants protect the aphids and move them to parts of the plants where the aphids can get the best food. In return the aphids produce a sweet sticky substance that the ants eat
mutualism
400
Explain the relationship between the hare and the lynx according to the graph
as one goes up the other goes down
400
The organism that a parasite lives on or in
host
500
How much energy is transferred from one level in a food chain?
10%
500
What is a niche?
An organisms job or role in the ecosystem
500
In the ocean barnacles grow on whale's skin. They get free transportation to areas rich in food, but the whales are completely unaffected
commensalism
500
Carrying capacity is the maximum number of individuals that an area can support, what would happen to the organisms in an area if carrying capacity is reached
death, increased competition, disease
500
This is something that eats both plants and animals
omnivore