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Populations And Ecosystems

Across
the mass of matter produced by organisms in an ecosystem
a place where an organism lives that supports its requirements for life
a sequence of organisms that eat one another in an ecosystem
the process by which producers make energy-rich molecules (food) from water and carbon dioxide in the presence of light
the capacity to do work
the sum total of all living organisms
a particle that is the basic building block of matter
variety of life
primary consumers
consisting of living organisms and products of organisms
a system of interacting organisms and nonliving factors in a specified area
a single organism
all the individuals of one kind (one species) in a specified area at one time
an organism that eats other animals
an organism that is able to produce its own food through photosynthesis
Down
nonliving
a unit used to measure heat energy
a trophic-level diagram in which the largest layer at the base is the producers; the first-level, second-level, and third-level consumers are in the layers above
organisms that eat primary consumers;
an organism that consumes parts of dead organisms and converts all the biomass into simple chemicals
an organism that makes its own food
all the interacting populations in a specified area
an organism that eats only plants
an organism that eats other organisms
collection of ecosystems that have similar environments and organisms