Biomes and Communities
A biome is a region that has a similar what?
Similar climate.
A population is a group of organisms of what type of species living in the same area?
The same sepcies.
These can affect how the prey populations are distributed.
Predators.
Which type of symbiosis occurs when two species interact with each other and benefit?
Mutualism.
How many mass extinctions have there been?
Five (5) mass extinctions.
A biome is a region with similar types of what living thing that uses chloroplasts?
Plants.
An organism is a single living thing, made up of one or many of these? They are able to grow and reproduce.
Cells.
Predator populations.
Which type of symbiosis occurs when two species interact with each other with one species benefiting and the other is unaffected?
Commensalism.
The Ordovician-Silurian extinction occurred how many years ago?
439 million years ago.
A biome is a region with a similar type of what multicellular organism?
Animals.
Animals in a habitat are located based on water, shelter locations and what two other important things?
Food and supplies.
This is the struggle between individuals or different populations for a limited resource.
Competition.
Which type of symbiosis occurs when two species interact and one species benefits, while the other host species is harmed:
Parasitism.
The Ordovician-Silurian extinction caused sea levels to do what?
An ecosystem contains two types of things that interact with each other in one environment, what are they?
Living and non-living things.
Some animals live in a which type of groups. Elephants and fish do this for safety.
They live in large groups.
This occurs when some organisms work together to benefit each other. Ants and bees do this.
Cooperation.
What is the approximate definition of a mass extinction?
Sharp decrease in number of species in relatively short period of time.
During the Ordovician-Silurian extinction , the sea levels did what because of glacial melting?
Sea levels rose.
Population sizes can change with the what?
With the seasons.
Symbiosis.
List four (4) ways a mass extinction can occur:
Asteroids, comets, global warming and an ice age.
What percentage of marine families died during the Ordovician-Silurian mass extinction?
25%.