This printable crossword puzzle on the topic of Ecology & Evolution has 16 clues. Answers range from 5 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
small openings for food/water in
large opening for waste/water out
rigid support structure made of calcium carbonate or silica
support structure composed of flexible protein fiber, collagen
jelly-like substance between cell layers
outer cell layer
inner cell layer
type of feeding method in sponges
phylum name of sponges means ------
sponges exchange gases, circulate nutrients by this method: simple ____
sponges exhibit this type of symmetry
cells involved in digestion, creating water flow
cells involved in distributing nutrients, reproduction, forming spicules
Sponges do not have this type of system for reacting to stimuli
an organism that has both sex structures to produce sperm and eggs
choanocytes also known as ________ cells