DEFINITIONS AND KEY POINTS FOR OBJECTIVES OF THE ECHINODERMS TERMS DEFINITIONS Filter feeder The animals ‘‘ Inch filter food particles form the \\ ater current are called filter feeders. Ossieles Ossicle are endodcrmal skeleton of echinoderms. Water vascular system Water vascular system composed of
DEFINITIONS AND KEY POINTS FOR OBJECTIVES
DEFINITIONS AND KEY POINTS FOR OBJECTIVES OF PHYLUM ARTHROPODS DEFINITIONS AND KEY POINTS FOR OBJECTIVES TERMS DEFINITIONS Schizocoelous coelom The coelom thrilled by the splitting of mesoderm is call Schizocoelous Tagmatization The regional specialization is called tagmatization. Epicuticle It is the outermost lay er.
DEFINITIONS AND KEY POINTS FOR OBJECTIVES TERMS DEFINITIONS Metamerism Segmental arrangement of body parts in an animal is called metamerism. Tagmatization The specialization of body regions in a metameric animal is called tagmatization Epitoky The formation of a reproductive individual is called Epitoky. Swarming
DEFINITIONS AND KEY POINTS FOR OBJECTIVES TERMS DEFINITIONS Coelom A coelom is a body cavity that arises in mesoderm and is lined by a sheet of mesoderm called the peritoneum. Protostomes The animals in which blastopore tbrin mouth are called Deutrostomes
DEFINITIONS AND KEY POINTS FOR OBJECTIVES TERMS DEFINITIONS Paedomorphosis Sexual maturity in a larval body form is called paedomorphosis. Zooids The two (or more) animals formed as a result of fission are called Zooids. Seminal vesicle Seminal vesicle is a sperm storage organ. Proglottides
DEFINITIONS AND KEY POINTS FOR OBJECTIVES TERMS DEFINITIONS Polyphyletic Groupsof organisms having separate origin are called polyphyletic. Pellicle A regular arrangement of microtubules is called the pellicle. Osmoregulation The maintenance of water and salt balance in the body is called osmoregulation. Symbiosis Symbiosis is