animal kingdom

Undifferentiated middle layer is seen in

diplobastic

ex of diplobastic phylum

coelenterates, ctenophora

diplobastic

triplobastic

coelomate

pseudocoelomate

acoelomate

ex of coelomates

annelids, molluscs, arthropods, echinoderms, hemichordates, chordates

ex of pseudocoelomates

aschelminthes

ex of acoelomates

platyhelminthes

the body is externally and internally divided into segments with a serial repetition of at least some organs it is called

metamerism

ex of metamerism

annelids, arthropods, chordata

Notochord is a _______ derived rod-like structure formed on the dorsal side during embryonic development in some animals

mesodermally

ex of non chordates

porifera, colenterata, ctenophora, platyhelminthes, aschelminthes, annelida, arthropoda, echinodermata

water canal system

porifera

water enters thru ____ into the body of sponges

ostia

water exits thru ____from the body of sponges

osculum

collar cells of sponges aka

choanocytes

the body of sponges are supported by

spicules

identify the phyla from the description

• asymmetric animals

• generally marine

• fertilisation is internal and indirect development

porifera

sycon

euspongia

spongilla

spongilla aka

freshwater sponge

euspongia aka

bath sponge

aurelia

adamsia

the body and tentacles of cnidaria have

cnidoblast or cnidocytes

cnidocytes contains stinging capsule aka

nematocysts

cnidarians have skeleton composed of calcium carbonate

corals

cylinderical, sessile form like hydra, adamsia

polyp

umbrella shaped, free swimming, like aurelia or jelly fish

medusa

polyp → medusae

asexually

medusae → polyp

sexually

identify the phyla from the description

• radially symmetrical

• diplobastic

• digestion both intra and extracellular

• can be free swimming or sessile

coelenterata

the ability to exists in both forms(polyp and medulla) and exhibit alternation of generation

metagenesis

ex of Coelenterata showing metagenesis

obelia

the only phylum to have bioluminescence

ctenophora

identify the phyla from the description

• diploblastic

• Exclusively marine

• radial symmetry

• presence of comb plates

• digestion both extra and intracellular

• fertilisation is external and indirect development

ctenophora

pleurobrachia is an example of

ctenophora

no of rows of comb plates present

8

which organ help in osmoregulation and excretion in phylum platyhelminthes

flame cells

identify the phyla from the description

• bilaterally symmetrical

• mostly found as endoparasite in animals and humans

• triploblastic

• fertilisation internal and development is through many larval stages

platyhelminthes

fasciola is an example of

platyhelminthes

pleurobrachia

which phylum’s organism has muscular pharynx

aschelminthes

identify the phyla from the description

• parasitic in plants and animals

• can be free living, aquatic or terrestrial

• bilateral symmetry

• triploblastic

• alimentary canal is complete

• dioecious

• fertilisation internal, development may be direct or indirect

aschelminthes

ancyclostoma is an example of

aschelminthes

aquatic annelids have lateral appendages called parapodia, present in

nereis

identify the phyla from the description

• may be aquatic, terrestrial, free living or parasitic

• bilateral symmetry

• triploblastic

• presence of metameres

• Longitudinal and circular muscles present for locomotion

• presence of closed circulatory system

• presence of paired ganglia connected by lateral nerves to double ventral nerve cord

annelida

which organ help in osmoregulation and excretion in phylum annelida

nephridia

hirudinaria is an example of

annelida

which phylum has a variety of respiratory organs like gills, book gills, book lungs, tracheal system found in its organism

arthropoda

balancing organ of arthropoda

statocysts

which organ help in excretion in phylum arthropoda

malpighian tubules

identify the phyla from the description

• triploblastic

• bilateral symmetry

• body segmented into 3 parts

• open circulatory system

• mostly dioecious

• fertilisation usually internal and development may be direct or indirect

• mostly oviparous

arthropoda

king crab aka

limulus

The space between the hump and the mantle is called the mantle cavity in
which feather like ___ is present

gills

in which phylum gills perform the function of both respiration and excretion

mollusca

which phylum has file like rasping organs for feeding

mollusca

file like rasping organ for feeding present in 2nd largest phylum is known as

radula

identify the phyla from the description

• bilateral symmetry

• triploblastic

• unsegmented body with distinct head, muscular foot, visceral hump

• anterior head region has sensory tentacles

• dioecious

• oviparous

• indirect development

mollusca

pearl oyster

pinctada

cuttlefish

sepia

squid

loligo

sea hare

aplysia

tusk shell

dentalium

chiton

chaetopleura

echinodermata have mouth on

ventral side

echinodermata have anus on

dorsal side

water vascular system

echinodermata

dentalium is an example of

mollusca

identify the phyla from the description

• presence of endoskeleton

• all are marine

• radial symmetry in adults

• triploblastic

• complete digestive system

• fertilisation usually external with indirect development with free swimming larva

echinodermata

excretory system is absent for which phylum

echinodermata

Star fish

Asterias

Sea lily

Antedon

Sea cucumber

Cucumaria

Brittle star

Ophiura

Asterias

Ophiura

identify the phyla from the description

• bilateral symmetry

• triploblastic

• open circulatory system

• body divided into anterior proboscis, collar, long trunk

• respiration through gills

• fertilisation is external and indirect development

hemichordata

Balanoglossus

Balanoglossus is an example of

hemichordata

Saccoglossus is an example

hemichordata

notochord is present _____ to nerve cord(acc to NCERT)

ventral

nerve cord is present _____ to notochord

dorsal

what does this describe

chordates

what does this describe

non-chordates

tunicata aka

urochordata

protochordates include urochordata & ______

cephalochordata

notochord is present only in larval tail, this is a feature of which sub-phylum

urochordata

notochord extends from head to tail region and is persistent throughout their life, this is a feature of which sub-phylum

cephalochordata

Ascidia, Salpa, doliolum is an example of

urochordata

Branchiostoma is an example

cephalochordata

Ascidia

amphioxus or lancelet aka

Branchiostoma

possess notochord during the embryonic period, this is a feature of which sub-phylum

vertebrata

in chordata _____ is used for osmoregulation and excretion

kidneys

identify the class from the description

• always ectoparasite on fishes

• 6-15 pairs of gill slits

• sucking and circular mouth without jaws

• no scales on body

• Cartilaginous skeleton

• closed circulation system

cyclostomata

animals of which class have a tendency to migrate to freshwater for spawning and die within a few days after spawning

cyclostomata