carnivore

an organism that derives its energy and nutrient requirements from a
diet consisting mainly or exclusively of animal tissue,whether through
predation or scavenging.

detrritivore

an organism that feeds on detritus trash,dead things,,organic or
inorganic matter a saprophage.

ecology

is the scientific analysis and study of interactions among organisms
and their environment.

ecosystem

an interacting group of living organisms in an area.

herbivore

animals that eat plants.

heterotroph

an organism which requires an external supply of energy in the form
of food because it cannot make its own.

omnivore

an animal which is able to consume both plants like a herbivore and
meat like a carnivore.

ecological

an organism that uses a primary energy source to conduct
photosynthesis or chemosynthesis.

biomass

is the mass of living biological organisms in a given area or
ecosystem at a given time.

foodchain

a simplified path illustrating the passing of potential energy food
from one organism to another organism.

foodweb

a complex arrangement of interrelated food chains illustrating the
flow of energy between interdependent organisms.

keystone species

a species that has a disproportionately large effect on its
environment relative to its abundance.

primary producer

organisms that make their own food from sunlight and/ or chemical
energy from deep sea vents are the base of every food chain these
organisms are called autotrophs.

energy pyramid

a model that illustrates the biomass productivity at multiple trophic
levels in a given ecosystem.