Chapter 42: Organisms in Their Environment Flashcards Preview

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Flashcards in Chapter 42: Organisms in Their Environment Deck (12):
1

Physical geography

the study of the distributions of Earth's climates and surface features
WOW, it doesn't all look the same! Different places look really different

2

Biogeography

the study of the distributions of organisms
different organisms are suited for different environments/not all can live everywhere
sharks can't just live on a mountain in North Dakota

3

Abiotic factors

nonliving factors
sunlight
soil

4

biotic components

living components

5

ecological system

one or more organisms + the external environment in which they interact

6

Ecology

comes from the study of house
apparently, when the guy who came up with this said house, he meant "the total relations of the animal both to its inorganic environment [abiotic] and its organic [biotic] environment"
becuase apparently that is what house means
ecology is super old because people were like oh this is food oh this is a dangerous predator for a verrryyyy long time

7

individual organism

smallest ecological unit
remove materials and energy from surroundings and turn them into things they can use/understand
mere presence changes the area

8

population

a group of individuals of the same species that live, interact, and interbreed in a particular geographic area at the same time
size changes based on reproduction/death

9

community

the assemblage of interacting populations of different species within a particular geographic area

10

biosphere

all of the organisms and environments of the whole entire planet

11

Ecosystem

generally used to refer to communities + physical environment

12

Are large ecological systems generally more complex than small ones? Why or why not?

more parts
parts intreract over a greater range of scales