The Nine Largest Phylums Crossword

What phylum has the most simple skeleton?
Most cells are ______ for particular functions.
Animals must reproduce ______.
Arthropods have a(n) ______ to cover the outside of their body.
What is a back boned animal?
If an animal doesn't have a back bone it is a(n) ______.
Protostomes develop the ______ first.
Deuterostomes develop the ______ first.
The central cavity of the blastula is the ______.
A fertilized egg is a(n) ______.
Protostomes have this type of cleavage.
Deuterostomes have this type of cleavage.
Form tissues, organs, and systems of an animal.
Which germ layer forms skin, nerves, and sense organs?
Which germ layer forms the digestive and respiratory organs and systems?
Which germ layer forms muscles, circulatory system, reproductive and excretory systems?
Internal body cavity lined with mesoderm is called the ______?
All worms, mollusks, arthropods, echinoderms, and vertebrates have ______ germ layer(s).
Head or front end of a fish.
Tail or hind end opposite of the head of a fish.
Back or upper surface of a fish.
Belly or lower surface of a fish.
______ hold individual cells in a tissue together.
Attached and non moving.
Able to move around.
Invertebrates are the most ______ animals.
Segmentation is found in ______ animals.
Move only a little.
______ cells can't form a new organism if separated.
Cnidarians and flatworms have a ______ net.