Evolution & Ecology Crossword

different species have evolved from earlier species
variations of species is a direct result of sexual reproduction and
this term refers to the variety of life on earth
the maximum size a population can support
Energy is passed through the tropic levels in the form of
is usually driven by a change in a species environment
a theory that supports the gradual change in evolution
a term that refers to a population of animals, plants, or other organisms that are separated from exchanging genetic material with other organisms of the same species.
species may live in the same area, but properties of individuals prevent them from interbreeding
evidence to support evolution: field of study responsible for fossil record and radioactive dating
the study of heredity and the variation of inherited characteristics
a theory that says evolution happens in quick spurts
overproduction of offspring; competition for limited resources; survival and reproduction or death
organisms that are better adapted are considered
these organisms die and their traits are eventually removed from the gene pool
this happens when an ecosystem begins to develop where there is no soil
a farm is abandoned and becomes a forest overtime
organisms who hold the most stored energy
primary consumers
bears are what type of secondary consumer?
an organisms role in their ecosystem
an action that humans take to reduce or repair environmental damage
nonliving factors in an environment
the living factors in an ecosystem
an animal that naturally preys on others
an animal that is hunted and killed by another for food
an organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense.
the natural home or environment of an organism
the regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms.
contamination
a resource which can be used repeatedly and replaced naturally