Chapter 1 test Fatima Vega

Chapter 1 test flachcards

system

a set of interesting components or parts

input

what goes into a system

output

what comes out of a system

systems can be…

opened, closed and isolated

opened system

both, input and output flow in and out freely

closed system

the flow of input and output is limited

isolated system

input and output are contained

inputs and outputs refer to…

energy, material, and information

systems have control to…

keep it functioning properly

controls can be..

automatic, mannual, or both

controls give..

feedback to the system

feedback

goes in a cycle of input-output

the feedback cycle is called..

feedback loop

systems in med bio…

are organized from small units (like cells) to larger units (like the individual being)

individual cells are…

components of a system

The larger unit casts…

a larger picture. This is known as the emergent property

The earth system has..

5 interconnected spheres

geosphere

earth

hyrdosphere

water

atmosphere

the layer of earths gases extending from the surface

biosphere

all components together

anthrosphere

human built components (city buildings, factories, malls..etc)

Biosphere

made of an ecosystem

biotic factors

living/once living components

abiotic factors

non-living things energy and matter

levels in ecosystem from small to big

organism, population, community, ecosystem, biome, and biosphere

biotic systems are divided into

terrestrial- land based ecosystem (29%)

Aquatic-water based ecosystem (71%)

characteristics of living things

made up of one or more cells

grow

reproduce

evolve

respond to environmental changes

maintain homeostasis (stable internal conditions)

Habitat

include both biotic and abiotic factors where organism lives

Ecological Niche

an environment that includes everything that the organism needs to survive and reproduce, this is how organisms live

includes the following factors

food sources

how speices compete for food

where the food is in the wed

Abiotic conditions

range of air

temperature and amount of water tolerance

Behavior: the time of day species is active, when and where it feeds, and when and where i reproduces

ecosystem

a collection of habitats

habitat

where an organism lives

niche

how an organism lives in the habitat

predation

when an organism captures and eats another

predation allows

for the transfer of energy up the food web

competition

when organisms compete for limited resources such as food, shelter, water, space, etc..

competition may..

occur between same and different organisms

symbiosis

relationship between different organisms

mutalism

both species benefit

commensalism

one benefits and the other doesn’t