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Biology 211 Unit 2
kingdom animalia
33
Biology
Undergraduate 1
10/05/2014

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Term
Cynidocytes
Definition

-nematosysts inject venom (jellyfish)

-carnivores, incomplete digestive systems

-not protostomes or deuterostomes

-external fertilization

Term
Corals
Definition

-Symbiotic dinoflagellates provide food for corals

-external skeletons of calcium carbonate

Term
lophotrocozoans
Definition

-bilaterally symmetrical

-triploblastic

-invertebrate animals

 

-platyhelminthese, rotifera, mollusca and annelida

Term
Platyhelminthes
Definition

-flatworms

-parasites

-acoelomates

-incomplete digestive system or none at all

-asexual, fragments regenerate

Term
cestodes
Definition

-tapeworms

-parasites

-lack a digestive system

Term
rotifera
Definition

-small but complex and multicellular

-pseudocoelomates

-complete digestive system

-parthenogenesis:

1. asexual

2. mitosis

Term
mollusca
Definition

-external shell of calcium carbonate

-coelomates with digestive system and ventral nerve cord

-have a mantle that covers visceral mass

-open or closed circulatory system

Term
3 lineages of mollusca
Definition

1. gastropoda

2. bivalvia

3. cephalapoda

Term
gastropoda
Definition

-lineage of mollusca

-feeds using radula

-open circulatory system

Term
bivalvia
Definition

-muscular front foot for moving and digging

-larva stage called glochidia

-lineage of mollusca

Term
cephalapoda
Definition

-lineage of mollusca

-most lack external shell or they have internal shell

-closed circulatory system

Term
annelida
Definition

-coelomates with digestive system

-closed circulatory system

-specialized feature for gas exchange

-ventral nerve cord

-hydrostatic skeleton

Term
clitella
Definition

-leeches

-ectoparasites

-produce anti-coagulant

Term
oligochaeta
Definition

-earthworm

-skin/nervous system from ectoderm

-muscles/organs from mesoderm

-coelom lined with mesoderm

-metanephridia remove nitrogenous waste

Term
pogonophorans
Definition

-tube worms

-adults lack digestive track

-bacteria at base of thermal vents

 

Term
nematodes
Definition

-exoskeleton made of collagen

-movemnet is thrashing

-pseudocoelomates

-complete digestive system

-have excretory/nervous/cephalization

-lack circulatory/respiratory

Term
arthropoda
Definition

-insects

-segmented bodies

-chitin exoskeletons

-jointed appendages

-respiration:

1.gills

2.book lungs

3.tracheal system

Term
chelicerates
Definition

-lineage in arthropoda

-two body regions

-no mandible

-have fangs

-simple eyes

Term
arachnids
Definition

-6 pairs of appendages

-4 pairs of walking legs

-one pair chelicerae

-one pair pedipalps

Term
insects
Definition

-have mandible

-anntenae

-compound eyes

-3 pairs legs

-wings

-3 tagmata:

1.head

2.thorax

3.abs

Term
isopods
Definition
rollipollies
Term
crustaceans
Definition

-crabs, shrimp, barnacles

-anntenae (2 pairs)

-3+ pairs of legs

-compound eyes

-gills

Term
feature of animalia
Definition

-sexually reproduce w/ diploid most prominent

-gametes during meiosis

-cleavage, blastuala, gastrula, gastrulation

Term
characteristics of animalia
Definition

-multicellular, chemoorganoheterotrophic

-obtain nutrients through indegestion

-lack cell walls

Term
body cavities
Definition

-coelomates: lined with mesoderm

-pseudoceolomates: partially lined with mesoderm

-acoelomates: not lined at all

Term
choanoflagellates
Definition
-most  closely related to protists
Term
sponges
Definition

-asymmetrical

-lack nerves and muscles

-no true tissues or organs

-no gastrulation or germ layers

-2 layers: gelatinous and epithelial

-suspension feeders

-digestion is intracellular

Term
choanocytes
Definition

-reproduction: serial hermaphrodites or asexually

-flagellated larvae

Term
cnidarians
Definition

-jellyfish, coral

-diploblastic

-body forms: polyp or medusa

Term
ecdysozoa
Definition

-shed exoskelton

- crayfish and parasites

Term
myriapods
Definition
milipedes and centipedes
Term
germ layers
Definition

endoderm

ectoderm
mesoderm

 

Term
protostomes and deuterostomes
Definition

proto: mouth first

deutero: anus first

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