Vocabulary Crossword

Any variation that makes an organism better suited to its environment.
Part of the Earth that supports life, including the top portion of Earth's crust, the atmosphere, and all the water on Earth's surface.
All the living organisms that live in an area and the nonliving features of their environment.
Study of the interactions that take place among organisms and their environment.
All the organisms that belong to the same species living in a community.
All the populations of different species that live in an ecosystem.
Place where an organism lives and that provides the types of food, shelter, moisture and temperature needed for survival.
Anything that can restrict the size of a population, including living and nonliving features of an ecosystem, such as predators or drought.
Largest number of individuals of a particular species that an ecosystem can support over time.
Organism, such as a green plant or alga, that uses an outside source of energy like the Sun to create energy-rich food molecules.
Organism that cannot create energy-rich molecules but obtains its food by eating other organisms.
Any close relationship between species, including mutualism, commensalism, and parasitism.
A type of symbiotic relationship in which both organisms benefit.
A type of symbiotic relationship in which one organism benefits and the other organism is not affected.
A type of symbiotic relationship in which one organism benefits and the other organism is harmed.
In an ecosystem, refers to the unique ways an organism survives, obtains food and shelter, and avoids danger.