Chapter 14 Flashcards
Symmetry: Has distinct head can be divided in half
Bilateral Symmetry
Distinct head where sensory structures are
Cephalization
Animals w/o space in between gut and body wall
Acoelomate = tripoblastic
Acoelomates are PROTOSTOMES/ DUETEROSTOMES and have ____ cleavage
Protostome
Spiral
Acoelomate belongs to superphylum….
Lophotrochozoa
Phylum Acoelomorpha: digestive system type
Incomplete (no anus)
Phylum Acoelomorpha: how to get food
Phagocytosis
Phylum Acoelomorpha: what kind of egg do they produce
Endolecithal (yolk-filled)
Phylum Platyhelminthes: flatworms have a ____ cavity
Gastrovascular
Phylum Platyhelminthes: osmoregulatory system consists of
Protonephridia
Flame cells
Phylum Platyhelminthes: light sensing organs
Ocelli
Phylum Platyhelminthes: asexual reproduction via…
Fission
4 classes of Phylum Platyhelminthes
Turbellaria (planaria)
Trematoda (flukes)
Monogenea (monogenetic flukes)
Cestoda (tapeworms)
Class Turbellaria Example
Planaria
Class Trematoda Example
Digenetic Flukes (parasite)
Class monogenea Example
Parasite on aquarium fishes
Parts of tapeworm (class cestoda)
Scolex - has suckers and hooks to attach to host
Prolottid - contains reproductive organs
Missing link between protozoa and metazoa
Phylum Mesozoa
Phylum mesozoa: parasites in ___
Marine invertebrates
Phylum mesozoa classes
Rhombozoans
Orthonectida
Phylum mesozoa: Adult rhombozoan
Vermiform
Phylum mesozoa: Orthonectids type of reproduction
Asexual and sexual
Ribbon worms phylum
Nemertea
Phylum Nemertea: Use _____ to capture prey
Proboscis
Phylum nermertea: digestive system
Complete (has anus)
Phylum nermertea: vascular system
Close loop blood-vascular system
