Animal Diversity 2 Flashcards

Terms Definitions
Cnidoblasts
Oviparous
lay eggs
Development
P: Mollusca
Protostome
Triploblastic
Eucoelomate
PHYLUM PLATYHELMINTHES
FLATWORMS
Green glands
The Three Domains
Archaea
Eukaryote
Bacteria
Paedomorphosis
retaining juvenille/larvae characteristics into adulthood
Organization
P: Arthropoda
Organ level
ACOELOMATE
NO internal cavity
Mammals
Monotremes-lay eggs, Marsupials-immature young, eutherians-mature young. Bones and cartilage. 4 chamber warm. Most developed system. Closed organs. Lungs, diaphragm. Mammary glands
Molluska
Snails
 
Bilateral Symmetry
Coelom (fluid filled body cavity in mesoderm)
Mantle: SHELL
Foot: movement
Visceral Mass: heart, digestive, excretory, & reproductive organs
Gills - filter feeder
Complete Gut
Sexual Reproduction
 
The Alveolates include...
Ciliates
Apicocomplexa (Sporozoan)
Dinoflagellates
Endothermic Vertebrates
C: Aves
C: Mammalia
OSTIA
pores of the sponge
Nephridia
excretory structure in mollusks
tubular structure that filters and cleans the coelom of nitrogenous wastes found in all coelomates (except arthropods and chordates)
Arthropoda
Insects, Crabs, Spiders
 
Bilateral Symmetry
Complete gut
Exoskeleton with joined limbs
Celomate
Complete Nervous/Respiratory System
Compound Eye
Invertebrate
Sexual Reproduction
 
Symmetry
P: Mollusca
Bilateral
Cephalization (reduced in Bivalvia)
Which Class?
 
lizards, snakes, turtles, alligators, and crocodiles
C: Reptilia
Reproduction
P: Mollusca
mostly sexual
mononecious and dioecious
external and internal fertilization
Trocophore larvae (except Cephalopoda)
free swimming Veliger Larvae
 
 
 
Heterotrophs
 Animals
obtain energy by injesting other organisms
multicellular, no cell walls, diverse in form 99% invertebrates, 42,500 vertebrates
reproduce sexually and have special type of haploid gamete
 
DEUTEROSOMES
Complete gut (mouth and anus)
Nematocysts
stinging components of the cnidocytes
Echinodermata
Starfish, Sea Urchins, Sea Cucumbers

Bilateral/Radial Symmetry
Celomate
Water Vascular System (gas ex./feeding/movement)
True Feet (tube feet for feeding)
Sexual Reproduction
Cerata
dorsal and lateral outgrowths into which digestive ducts extend, with a cnidosac at the terminal end
Largest class within the Mollusca
C: Gastropoda
Classes of Sub-Phylum Myriapoda
C: Chilopoda
C: Diplopoda
Skeleton
 
P: Chordata
Endoskeleton: bone, cartilage, or other
axial and appendicular skeletons
Hyposomatic Regulators
occurs in saltwater fishes
 
water loss and salt gain: "drink" seawater and salt secretory cells in gills
Respiration
 
P: Echinodermata
papulae and tube feet
Holothuroidea also use anus
 
Digestion/Feeding
 
P: Chordata
vast array of feeding types
Umbo
the oldest part of the shell
Flightless birds have a _____ sternum
flat
Which class?
 
Seed Shrimp
Class Ostracoda
 
enclosed in bivalved carapace (looks like a seed!)
Radiata
radial symmetry, body design where parats of body arranged around central axis so that any plane passing through central axis divide organism into mirror image halves
MEDUSA
mouth on bottom, motile. (eg. jellyfish)
Cnidaria
Jellyfish, Corals. Eumetazoa. 2 Germ layers. Radial symmetry. 1 Gut opening
Cephalization
the concentration of sensory equipment on the anterior end of the body, head develops faster than the rest of the body
Cleavage
a succession of mitotic division in which the zygote continuously divides to form a blastula
Order AnuraWhat class?
frogs & toadsClass Amphibia
Ovigers
Males in the Class Pcynogonadia carry developing eggs on a specialized pair of legs called ovigers
Which class has temperature dependant sex determination?
C: Reptilia
A filter-feeding mollusk is most likely a member of which class?
A. Gastropoda
B. Bivalvia
C. Cephalopoda
D. Scaphapoda
E. Polyplacaphora
C. Bivalvia
Which class?
 
sea urchins and sand dollars
C: Echinoidea
Lateral Line System
present in sharks
 
fluid filed sensory canals with tiny hair-like receptors to detect vibrations
Which chordate characteristic is present in adult Urochordata?
a. gill slits/arches
b. post anal tail
c. dorsal hollow nerve cord
d. notochord
e. planula larvae
a. gill slits/arches
The Rhyanchocoel is a characteristic of which phylum?
A. Nematophora
B. Nemertina
C. Acanthocephala
D. Rotifera
E. Arthropoda
 
B. Nemertina
Protobranch
gills the form in gastropods, chitons, and cephalopods
Digestion and Feeding
P: Mollusca
Complete digestive system
regional specialization
anus opens into mantle cavity
radula
gills modified for filter feeding
Blastopore
forms when blastula folds inward at one point to form hollow sac with opening at one end (called blastopore). An embryo at this stage is called a gastrula
Taxon
a group of organisms that are gentically and evolutionarily related
BINOMAL NAME
The Genus and species name together
Choanocytes
a flagellated feeding cell found in sponges; also called a collar cell in which it traps food particles around the base of its flagella
Amniotic Egg
allows reproduction away from water (birds & mammals have as well)contain fluid-filled sac (amnion) enclosing embryo
Cephalochordates & Urochordates
(Invertebrate Chordate subphyla)
Simplified fishies & Sea Squirts, Tunicates
 
Notochord
Tadpole Larval Stage
Always Marine 
Asymmetry
Incomplete gut
Duterostome
 
Which class of the Echinodermata have a madreporite on the oral surface?
 
the Ophiuroidea
Ovoviviparous
eggs develop and hatch inside or soom after laying with no nourishment from mom
Which extant class of Arthropoda lack mandibles?
A. Trilobita
B. Hexapoda
C. Crustacea
D. Chelicerata
E. Myripoda
D. Chelicerata
Only as a tadpole larvae does ______exhibit all 5 Chordate characteristics
 
SP: Urochordata
challenges imposed by exoskeleton
restricts growth, movement, gas exchange, sensation, exchange of solutes and water
Regeneration in Echinodermata
most Echinodermata are capable of regeneration as long as they contain some part of the central disc
Aristotle's Lattern
5-toothed jaw mechanisms found in C: Echinoidea
Morula
solid ball of cells that results after cleavage
CLASS TREMATODA CHARACTERISTICS
Parasitic worms called flukes, poorly developed digestive system, thick protective covering of cells called tegument, one or more suckers, generally have more than one host
Tracheal tubes
tiny air tubes that branch throughout the insect body for gas exchange
Endothermy
process in which animals such as birds or mammals mantain a constant body temp using metaoblic energy
Class Amphibia metamorphosis
from gill-breathing larva (tadpole) to lung-breathing adult(under hormonal control)
In most vertebrates, the first 2 gill arches are modified to become
a. lungs
b. skull
c. jaws
d. larynx
e. ribs
c. jaws
Pharyngeal Endostyle Characteristics
 
ciliated grooves in floor of pharynx trap food
present in protochordates amd lamprey larvae where the pharnx evolved as a filter-feeding apparatus
is more derived in adult lamprey and vertebrates, homologous to thyroid
CLASS DEMOSPONGIA
most diverse class of sponges, have a skeleton make of spongin fibers of collagen.
Exoskeleton
a hard encasement on the surface of an animal, such as the shells of mollusks or the cuticles of arthropods, that provides protection and points of attachment for muscle
Pharyngeal Gill Slits Characteristics
in aquatic chordates, they become the gills
in tetrapods, they become part of the throat and ear cavity
What is the classification of the flies and mosquitoes?
P: Arthropoda
SP: Hexapoda
C: Insecta
SC: Pterygota
Div: Endopterygota
O: Diptera
Which of the following is a part of the appendicular skeleton?
a. vertebrae
b. rib
c. skull
d. femur
e. mandible 
d. femur
CHARACTERISTICS OF ALL ANIMALS
Cannot make their own food, either sessile or motile, digestive cavity inside the body, can perform rapid complex movements, multicellular
COELOM FORMATION IN PRO & DEUT
PROTOSTOMES: the splitting of solid masses of mesoderm forms the coelomDEUTEROSTOME: the mesoderm buds from the wall of the archenteron to form the coelom
Torsion refers to which of the following?
A. coiling of the shell
B. reduction of the shell
C. development of tentacles
D. development of segments
E. twisting of the body cavity
E. twisting of the body cavity
/ 76
Term:
Definition:
Definition:

Leave a Comment ({[ getComments().length ]})

Comments ({[ getComments().length ]})

{[comment.username]}

{[ comment.comment ]}

View All {[ getComments().length ]} Comments
Ask a homework question - tutors are online