Ecologists + Ecology
A group of the same species that live in one area
A population
These factors are living things
Biotic
Most producers get their energy from _______________.
The sun; sunlight
An organism that eats only plants is a(n)
Herbivore
The steps of the hydrologic cycle
Evaporation + transpiration, condensation, precipitation
The act of carefully watching something over time
Observation
factors are nonliving things
Abiotic
Organisms that make their own food are called ________________, or ________________.
producers, autotrophs
The type of organism that forms the base of every food chain is a:
Producer; autotroph
The two important process in the oxygen cycle
Photosynthesis, Respiration
The study of the interactions among living things, and between living things and their environment
Ecology
an organism that has an unusually large effect on its ecosystem
Keystone Species
Organisms that get their energy from other organisms are called ________________, or _________________.
An organism that eats dead organic matter is a(n)
Detritivore
The conversion of gaseous nitrogen into ammonia by bacteria
Nitrogen Fixation
This type of survey makes use of evidence, such as the footprints left behind by animal
Indirect Survey
The variety of living things in an ecosystem
Biodiversity
T or F: An animal that eats other animals does not depend on sunlight for its energy.
False
An organism that eats primarily one species is a(n)
Specialist
The bottom tier of the energy pyramid contains __________. The __________ tier contains the LEAST energy.
All of the organisms that live in a given area, as well as the climate, soil, water, rocks, and other nonliving things in that area is:
An Ecosystem
All ecosystems are made up of ____________ and ___________ components.
living, non-living
The process of using energy from chemicals to form carbohydrates is called:
Chemosynthesis
In a food chain, the consumer that eats an herbivore is called a
Secondary Consumer
When a consumer incorporates the biomass of a producer into its own biomass, a large amount of energy is lost as ____________and ___________.
Heat, waste