Grade 7 Ecosystems and Plants

An online crossword puzzle with 18 words. Play it free at AgileCrosswords.com.

Clues

the gradual accumulation of substances in an organism
an organism that breaks down the remains of dead organisms
chemicals to control pests
an organism that lives on or in a host
organism that obtains energy by eating other organisms
the main root of the root system
when a plant or animal has no more individuals of that species anywhere in the world
non-living part of an ecosystem
modified leaves that surround reproductive parts of the flower
where the pollen enters the pistil
transformation of light into chemical energy
liquid or frozen water that forms in the atmosphere and falls back to earth
the process of change in an ecosystem
chemicals to control unwanted plants
an organism capable of creating food from co2
male reproductive organs of flowering plants
female reproductive part of flowering plants
living components of an ecosystem