9 Largest Phylum Crossword

Non moving
sensory organs concentrated at the head
have a backbone or spine
arrangement of body parts around a central plane or axis
fertilized egg all animals form from
rapid cell divisions
hollow ball of cells
central cavity of the blastula
develop mouth from blastopore (mollusks, arthropods, & annelids)
develop anus from blastopore
embryonic cells divide in a spiral arrangement
embryonic cell division parallel or perpendicular to the vertical axis of the embryo
deep cavity of the gastrula that forms the primitive gut
embryonic cells cant form a new organism if separated
embryonic cells can form other organisms if separated such as identical twins
form the tissues, organs, & systems of an animal (endoderm, ectoderm, mesoderm)
larva of cnidarians
larva of mollusks
larva of echinoderms
internal body cavity lined with mesoderm
animals do not have a body cavity but have solid bodies
animals have a body cavity only partially lined with mesoderm
opening in the gastrula formed when the blastula forms inward
take in food and internally digest it
found in arthropods and cover the outside of the body but limit size (made of chitin)
found in all vertebrates are found inside the body & are made of cartilage &/or bone
provides energy for movement
hold individual cells in a tissue together
transports oxygen and nutrients to cells & carbon dioxide and wastes away from cells
brain interprets nerve impulses and sends a response
outer covering of an animal
rids animals of wastes, help conserve water, & filter wastes from the blood
asexual reproduction in which an outgrowth breaks off to form a new individual