Biology Chapter 13 Vocab

32 terms by Natalie_W_14 

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Ecology

the study of interactions among living and non living things along with their environment

Community

a group of different species that live together in one species

Ecosystem

all of the organisms as well as climate, soil, water, rocks and nonliving things

Biome

a major regional or global community of organisms characterized by the climate

Biotic

living things (such as plants, animals, fungi and bacteria)

Abiotic

non-living things (such as climate, moisture, temperature, sunlight, and wind)

Biodiversity

variety of living things within a ecosystem

Keystone Species

has an unusually large effect on its ecosystem

Producer

organisms that get their energy from nonliving resources, meaning they make their own food

Autotroph

also called producers

Consumer

organism that gets its energy from living or once living things like plants and animals

Heterotroph

also called consumers

Chemosynthesis

the process by which ATP is synthesized by using chemicals as an energy souce than light

Food Chain

model that shows a sequence of feeding relationships

Herbivore

organisms that eat only plants

Carnivore

organisms that eat only animals

Omnivore

organisms that eat both plants and animals

Detritivore

orgamisms that eat detritus, or dead organic matter

Decomposer

detritivores that break down organic matter into simpler compounds

Specialist

consumer that primarily eats one specific organism or feeds on a very small number of organisms

Generalist

consumers that have a varying diet

Trophic Level

level of nourishment in a food chain

Food Web

model that shows the complex network of feeding relationships and the flow of energy within and sometimes beyond an ecosystem

Hydrologic Cycle

(also known as the water cycle) pathway of water from the atmosphere to Earth's surface below ground, and back

Biogeochemical Cycle

the movement of a particular chemical through the biological and geological (living and nonliving) parts of an ecosystem

Nitrogen Fixation

process by which certain types of bacteria convert gaesous nitrogen into nitrogen compounds

Transpiration

evaporation that occurs between plants leaves and the atmosphere

Carbon Sinks

area that stores carbon over long periods of time

Nitrification

bacteria change ammonium into nitrate

Ammonification

process in which nitrogen is returned to the soil as ammonium

Biomass

total dry mass of all organisms in a given area

Energy Pyramid

diagram that compares energy used by producers, primary consumers and other trophic levels

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