Basic Characteristics
Symmetry/Body Cavities
Phylum Classification
Phylum Examples
Derived Characters
100
2 tissues of animals not characteristic of any other types of organisms
What are muscle and nervous
100
symmetry of an animal in which the body can be divided along any plane into roughly equal halves
What is radial symmetry
100
phylum with animals with jointed appendages
What are the arthropods
100
Phylum of animals including tapeworms, flukes and planaria
What are the flatworms
100
first animal group to have a body cavity
What are the roundworms
200
Type of nutritional strategy for an animal - begins with H
What is heterotrophic
200
symmetry of an animal that can be divided along its length into similar right and left halves
What is bilateral symmetry
200
phylum with animals with pores, amoebocytes and collar cells
What are sponges
200
Phylum of animals including ascaris and trichina
What are the roundworms
200
characteristic that evolved in annelids that allowed for specialization of body sections and greater complexity of organ systems
What is segmentation
300
Cell-covered fluid-filled ball that develops from an animal zygote
What is a blastula
300
any animal that develops from 3 cell layers but has no body cavity
What is an acoelomate
300
phylum with animals with a water-vascular system
What are the echinoderms
300
phylum of animals including grasshoppers, crayfish and centipedes
What are the arthropods
300
2 characteristics that evolved in flatworms that allowed for quick forward movement
What are bilateral symmetry and cephalization(head end)
400
early embryonic form of an animal made of 2 layers of cells with an opening at one end
What is a gastrula
400
any animal that has has a body cavity between the endoderm and mesoderm
What is a pseudocoelomate
400
phylum with animals that have segments and a complete digestive system and some with a crop and gizzard
What are the annelids
400
phylum of animals including sea urchins, seastars and sand dollars
What are echinoderms
400
characteristic that evolved in echinoderms that allowed for internal support
What is an endoskeleton
500
3 tissue layers of the early animal embryo
What is ectoderm, endoderm and mesoderm
500
any animal that has a body cavity completely surrounded by mesoderm
What is a coelomate
500
phylum with animals with a muscular foot and most with a shell
What are the mollusks
500
phylum of animals including snails, squid, clams and octopusses
What are mollusks
500
characteristic of sponges that allowed for evolution of animal life from protists
What is multicellularity
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