This printable crossword puzzle on the topic of Ecology & Evolution has 15 clues. Answers range from 7 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
a small freshwater mollusk named for the striped pattern often found on its shells
a small freshwater mollusk that has hinged shells like clams
a small, bottom-dwelling fish with raised eyes.
a fish that is eel-like in appearance.
a small herring that is silvery blue/green in color.
an upright, perennial plant whose leaves are elongated, have smooth edges, and are fuzzy on their surface
a plant that grows rooted to the bottom whose leaves are divided into thread-like leaflets, usually in pairs of more than 12 to 14, forming a feathery shape.
A group of five freshwater lakes of central North America between the United States and Canada, including Lakes Superior, Michigan, Huron, Erie, and Ontario.
a rotifer, which is a type of small zooplankton.
an invertebrate zooplankton species also called a cyclopoid copepod
a small fish that resembles a yellow perch with walleye markings.
Also known as Bythotrephes longimanus
Also known as Phragmites australis
a perennial, cool-season, rhizomatous plant in the grass family
water carried in ships' ballast tanks to improve stability, balance and trim.