This printable crossword puzzle on the topic of Ecology & Evolution has 17 clues. Answers range from 4 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
two organisms that live in the same environment have little or no effect on each other.
relationship between organisms in which one species is harmed or inhibited and the other species is unaffected
one organism secretes a chemical that kills the other organism, while the one that secreted them chemical is unharmed.
a larger or more powerful organism excludes another organism from its source of shelter or food.
an organism composed algae and fungus which are both beneficial to each other
relationship that exist when both organisms benefit from the relationship
describes a biological interaction where a predator (an organism that is hunting) feeds on its prey (the organism that is attacked).
animal that is eaten
animal which hunts and kills prey
competition among members of the same species,
competition between individuals of different species
competition which occurs directly between individuals via aggression
competition that occurs indirectly through a common limiting resource which acts as an intermediate
competition which occurs indirectly between two species which are both preyed upon by the same predator.
a relationship in which one organism benefits and the other is not affected.
one organism benefits and one is hurt by the relationship.
a situation in which 2 different organisms live together in close association.