Bio: Flashcards
(23 cards)
Name the Metric system terms in order from smallest to largest
Kilo Hecto Deka Meter Deci Centi Milli
Ecology
The study of how living things interact with each other + environment
abiotic Factors
referring to a physical of nonliving component of an ecosystem
biotic factors
relating to a living component of an ecosystem
niche
The role of a species in its ecosystem
- Food it eats
- ho the food is obtained
habitat
Type of place where an organism lives
competitive exclusion principle
The principle that when the population of 2 species compete for the same limited resource at the same time, one population will use the resource more efficiently leading to local extinction of the other species.
photoautotrophes
An organism that derives energy from light + forms its own organic compounds from abiotic carbon sources
chemoautotrophs
Use energy from chemical compounds to make food by chemosynthesis.
herbivores
a plant eating consumer: one of the class of consumers most closely associated with producers.
carnivores
Any organism that consumes animal; a meat eater
omnivores
capable of eating both plant and animal material
decomposers
An organism that lives on decaying organic material from which it obtains energy and nutrients
Scavengers
organisms that eat dead organisms
detritivores
organic waste eaters
detritus
organic waste
ie: dead leaves, animal feces and other organic debris that collects on the soil of bottom of a body of water.
saprotrophs
the final stop in decomposition. They feed on any remaing organic matter that is left over after other decomposers do their work. This includes fungi and single celled protozoa. but Fungi are the only organisms that can deompose wood
what is the only organism that can decompose woord
Fungi
Food Chains
represents a single pathway throught which energy and matter flow through an ecosystem.
Food web
represents a multiple pathways through which energy and matter flwo through an ecosystem.
Trophic Levels
the feeding positions in a food chain or web. all food chains and webs have at .least two or three trophic levels
Whats the maximum amout of trophic levels there can be in a food web
4
Biomass
the total mass of organisms at a trophic level.
