BIO EXAM 2

What phylum are flatworms in?

Phylum Platyhelminthes

What kingdom are Platyhelminthes under?

Kingdom Metazoan

What is the superphylum under Metazoan?

Lophotrocezoa

What is the subphylum under Metazoan?

Rhabditida

What is the class of metazoan?

Class Turbellaria

What kingdom is animals under?

Metazoan

Does Parazoa have tissues?

No

Does Eumetazoa have tissues?

Yes

What phylum are sponges in?

Phylum Porifera

Do sponges have tissues and organs?

lack true tissues and lack organ systems

What type of symmetry do sponges have?

asymmetrical

What is a Spongocoel?

The central cavity of a sponge.

What is ostia?

where water enters the sponge

What is mesophyll?

jelly filling

What are spicules?

rigid structures

What is spongin?

protein fibers/ flexible support

What class is glass sponges under?

Class Hexactinellida

What class is calcareous sponges under?

Class Calcarea

What class are demosponges under?

Class Demospongiae

What class are coralline sponges under?

Class Sclerospongiae

Sponges are mostly marine and mobile larvae and sessile adults stay in?

One place

Are sponges filter feeders?

Yes, most of the time

What type of reproduction do sponges possess?

monoecious

What Phylum are cnidarians under?

Phylum Cnidarian

What symmetry do cnidarians have?

radial symmetry

Are cnidarians diploblastic or triploblastic?

diploblastic

Do Cnidarians have true tissues?

tissues but no organs

Cnidarians have cnidocytes, mesoglea, and a nerve net

.....

What is a cnidocyte?

stinging cell

What are nematocysts?

stinging organelles in cnidarians

Are polys sexual or asexual?

They are sessile which is asexual

Are medusa sessile or motile?

motile which means they reproduce sexually

Are cnidarians mono or dioecious?

both

What form are true and box jellies?

Medusa form

What form are coral and sea anemones?

Polyp form

Do cnidarians have a complete digestive system?

No, they have a gastrovascular cavity

What life history traits are associated with phylum cnidairia?

marine, thigmotaxic, basic senses, carnivores

What four classes are under Phylum Cnidaria?

Anthozoa, Scyphozoan, Cubozoan, Hydrozoa

What are examples of class anthozoa?

sea anemones, corals, "flower animals"

What are examples of class scyphozoan?

true jellies, "cup animals"

What are examples of class cubozoan?

box jellies, "box animals"

What are examples of class hydrozoa?

hydroids, "water animals"

What animal causes irukanjki syndrome?

sea wasp and Irukanji

What is the superphylum of Phylum Cnidarian?

Superphylum Lophotrochozoan

What are the shared traits of Lophotrochozoan

They are triploblastic, bilateral, cephalization, and first mouth

What do the Lophophore and Trochozoa have in common?

ciliated tentacles and feeding structures

What two subphyla are under Phylum Platyhelminthes?

Catenulida and Rhabditophora

What are Catenulida?

"chain worms"

What are Rhabditophora?

"Rhabditid bearers"

What are specialized traits in flat worms?

First triploblastic animals (Ecto, Endo, and Mesoderm), free-living, and parasitic

What organ system is present in flat worms?

gastrovascular cavity , one opening with pharynx

Do flat worms have a circulatory and nervous system?

lack a circulatory system, but have a nervous system with ganglia

Do flat worms have light sensitive eyespots?

yes

What is the reproduction of platyhelminthes?

monecious and sexual

What are the four classes of Platyhelminthes?

Turbellaria, Trematoda, Monogenea, Cestoda

What are tubellarians?

free-living flatworms, hammerhead worms

What are Monogenea?

One host flukes, ectoparasites

What are Trematoda?

two host flukes, endoparasitic, with a intermediate host (mollusks)

What are cestodes?

tapeworms, endoparasites

What phylum are rotifers apart of?

Phylum Rotifera

What are some specialized traits of rotifers?

ciliated corona, muscular mastax, feeding and movement

What are the characteristics of phylum rotifera?

Bilateral, Triploblastic, organ system, pseudocoelom, dioecious, some are parthenogenetic

Are rotifers free-living or parasitic?

free living filter feeders

What phylum are ribbon worms associated with?

Phylum Nemertea

What are some specialized traits of Phylum nemertea?

Proboscis with rhynchocoel

What are the characteristics of nemertea?

bilateral, triploblastic, pseudocoelom

Are nematodes monoecious or dioecious?

dioecious

can nematodes regenerate?

yes

What are Phylum Mollusca?

mollusks

What are shared traits for mollusks?

Muscular foot, visceral mass, mantle, gills, radula

What are characteristics of mollusks?

bilateral, triploblastic, eucoelomates

What is a radula?

rasping tongue, drilling tool, venomous harpoon, modified beak

Do the phylum mollusca have an open circulatory system?

yes

How many total classes are there in the phylum mollusca?

8 total classes

What does Polyplacophora mean?

many plates

What is a gastropoda and what are some examples?

"stomach foot," snails, slugs, nudibranchs

What is the most diverse in Phylum molluska?

gastropoda

What does bivalvia mean and what are some examples?

"two halves," and oysters, clams, mussles, and scallops

What are cephlapods and what are some examples?

"head foot," and squids, octopuses, cuttlefish, and nautiluses

Do cephalopods have an open or closed circulatory system?

closed

Do cephalopods have a nervous system?

complex nervous system

What phylum are segmented worms in?

Phylum Annelida

What are shared traits of phylum annelida?

metamerism, bilateral, triploblastic, cephalization, eucoelomates ventral nerve cord

Does Phylum Annelida have an open or closed circulatory system?

closed

What is parapodia in phylum annelida?

segment with setae

Are phylum annelida marine?

Marine, freshwater, and terrestrial

Is phylum annelida monoecious?

Leeches are monoecious

Is phylum annelida dioecious?

season gonad formation is

What is polychaeta and what is an example?

"many hairs," and bobbitt worm

What are some characteristics of Polychaeta?

parapodia, mostly marine, free-living

What is Oligochaeta and what is an example?

"few hairs," and earthworms and leeches

What are some characteristics of Oligochaeta?

monoecious, freshwater and terrestrial, free-living, and ectoparasites

What is the superphylum of Phylum Annelida?

Superphylum Ecdysozoa

What are some shared traits of superphylum ecdysozoa?

triploblastic, bilateral, cephalization, most animal diversity

What are characteristics of superphylum ecdysozoa?

cuticle covering body, exoskeleton, and ecdysis

What is the phylum of interest in superphylum ecdysozoa?

Nematoda and Arthropoda

What phylum are roundworms in?

Phylum Nematoda

What are shared traits of phylum nematoda?

unsegmented, pseudocoelom, bilateral, triploblastic, cuticle made of chitin, must shed cuticle

What are some morphological traits of phylum nematoda?

longitudinal muscles, muscular pharynx, nerve ring

Are phylum nematoda monecious?

Both monecious and dioecious