Vocabulary
Food Webs
Ecosystems
Biodiversity
Misc.
100
An environment that provides the things an organism neds to live, grow, and reproduce.
What is a habitat?
100
These organisms produce energy through the use of photosynthese.
What are Plants?
100

What 2 things make up an ecosystem?

1. one or more populations of living organisms

2. the environment (all of the abiotic factors)

100
The definition of biodiversity is _____________________.
What is the variety of different organisms living in a certain area?
100
The organism that a parasite lives in or on in a parasitism interaction.
What is a host?
200

The nonliving parts of an organism's habitat

abiotic factors

200

These organisms are herbivores, therefore they are called ______________ consumers.

What is primary?

200

The maximum population size that an ecosystem can support indefinitely is known as....

Carrying capacity

200

The term given to a species that plays a very important role in an ecosystem. The ecosystem would fall apart quickly if this species dissappeared.

What is a keystone species?

200
An organism that is killed and eaten by another organism.
What is prey?
300
A relationship between two species in which one species benefits and the other is neither helped nor harmed.
What is commensalism?
300

These organisms are typically at the top of the food chain.

What is tertiary consumers or apex predators

300

Things that limit or affect the size of a population are known as ____   _____.

limiting factors

300

The primary cause of species extinction on Earth, primarily due to the expansion of human populations.

habitat loss

300
A carnivore that feeds on the bodies of dead organisms.
What is a scavenger?
400
An organism that breaks down wases and dad organisms.
What is a decomposer?
400
This is a way to show how energy in a food web is allocated. Usually there is a large base and a pointed top.
What is an energy pyramid?
400

Drought affects all members of a population equally regardless of population size. This is an example of what kind of limiting factor?

Density independent

400

The weather patterns in an area over a long period time (many years) is known as......

climate

400
An interaction in which one organism kills another for food.
What is predation?
500
A series of events in which one organism eats another and obtains energy. Usually written on one line.
What is a food chain?
500

What is the percentage of energy LOST at each step of a food chain? In other words, how much energy stored by plants is lost and not available to the herbivores that eat plants.

What is 90% or more?

500

What are the 3 types of symbiosis?

mutualism, commensalism, parisitism

500
This group of species are very sensitive to environmental changes. Usually they are the first to be hurt due to pollution.
What are indicator species?
500
A group of organiss that are physically similar and can mate wit each other and produce offspring that can also mate and reproduce.
What is a species?
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