Unit one test 1.1 Flashcards
population
group of organisms
individual
one organism
community
all living organisms in an area
ecosystem
all living and nonliving things in an area
biome
large area with similar climate conditions that determine plant and animal species there
Competition
Organisms fighting over a resource like food or shelter. (limits the population size) (-,-)
Predation
One organism using another for energy source. (-,+)
Mutualism
Relationship between two organisms that benefits both of them (+,+)
Example of mutualism
sea anemone and a clown fish
commensalism
Relationship between two organisms that benefits one and does not affect the other
Example of commensalism
barnacles on whales
What are the types of predation
Herbivores, parasites, parasitoids, and true predators.
Herbivores
eat plants for energy
true predators
hunt and kill prey for energy
parasites
live inside a host organism and use it for energy.
parasitoid
lay eggs inside a host organism. When the eggs hatch they eat the host for energy.
symbiosis
any close long term interaction between two organisms of a different species
Second example of mutualism
Coral provides a reef structure and CO2 for algae; algae provides sugar for coral to use as energy
resource partitioning
different species using the same resource in different ways to reduce competition
temporal partitioning
using resource at different times of the day
spatial partitioning
using different areas of a shared habitat
morphological partitioning
using different resources based on different evolved body features
