This printable crossword puzzle on the topic of Ecology & Evolution has 15 clues. Answers range from 2 to 21 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
How many species of mollusks are currently extant
The largest invertebrate
Digestive tract is contained in a...
Evolved how many years ago?
Reproduce mostly through...
Circulation is ____
Use a ______ for breathing and excretion
Feed using a...
Had the earliest form of a complete...
Evolved from...
Mollusks detect light, vibrations, touch and _________
Many mollusks use _____ to defend themselves
Gastropods account for __% of mollusks
Shells are made of...
Main body cavity is a ________ circulatory system