bk2 ch6.1 Flashcards
When we talk about an ecosystem, we are referring
to…
the living organisms that inhabit a specific region, how they interact with each other, and the effects on them of the non-living environment around them.
Ecology is the study of what?
an ecosystem, the interactions and organisms within it, and the interactions of organisms with the non-living environment.
The term living organisms includes…
all of the plants and animals that live in or visit the region.
Why do scientists study organism populations?
To see what factors cause populations changes (increase/decrease etc.)
The non-living (abiotic) environment includes physical factors such as what?
rainfall, temperature, wind, sunlight, rocks, soil and water.
What is a biosphere?
It refers to that part of the Earth (including its atmosphere) in which living organisms can be found.
The Earth biosphere is
then divided into a second level of
b_____ r_____.
biogeographical regions. (examples are Australia and North America)
What does the term biome refer to?
refers to areas that have similar climatic conditions;
that is, similar soil types, rainfall, temperature and so on.
Scientists have observed that organisms living in the same type of biome have s\_\_\_\_\_ f\_\_\_\_\_, regardless of whether they are in the same biogeographical region.
similar features
Animals moving from biome to another is called…
migration
Within each biome are different h_____
habitats
In every habitat there are areas where conditions
vary from the rest of the habitat. Some organisms live in certain areas of these habitats, making that area which they live in a m_____
microhabitat
