The 9 Largest Phylum Crossword

Cells lack _______ and come in a variety of shapes
Take in food and internally digest it.
Found on the outside of arthropods and limit size.
Found in all vertebrates
Make up endoskeletons
Have fluid-filled internal cavities giving them skeletal support
Have the simplest skeleton
Provides energy for movement
Cells are ______ for particular functions
Hold individual cells in a tissue together
Most ________ have a backbone or spine made of repeating bones called vertebrae that protect the spinal cord.
When an animal has sensory organs concentrated on the head
The arrangement of body parts around a central plane or axis
Occurs when similar body parts are arranged around a central point like spokes on a wheel
Most animals with radial symmetry are ______ or sedentary
Animals with _________ show cephalization and have anterior and posterior ends
Occurs whenever animal bodies are divided into repeating units or segments
Contains the greatest number of animal species
Includes fish, amphibians, reptiles, birds, and mammals
All animals reproduce ________, but some also reproduce asexually
The fertilized egg all animals form from
The central cavity of the blastula
New cup-shaped structure with 2 cell layers is called the _______
__________ develop mouth from blastopore
__________ develop anus from blastopore
Some animals form a third germ layer in the middle called ________
Protostomes have _________ in which embryonic cells divide in a spiral arrangement.
Deuterostomes have __________ or embryonic cell division parallel or perpendicular to the vertical axis of the embryo
Forms skin, nerves, and sense organs
Forms the digestive and respiratory organs and systems
forms muscles, circulatory system, reproductive and excretory systems