Animal Biology Exam 3

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Terms in this set (...)

General Charcteristics of Class Nematoda
Roundworms
Psuedocoelomate
free living mostly
molting cuticle
Cuticle
OUter layer that is used for protection
Pseudocoel
Body cavity found in various worms
Ecdysis
Molting of the cuticle
Molts 4 times
How do nemotodes feed
Eat mostly anything
Have a muscular pharynx
Complete digestive tract
Ascaris lumbricoides
Human roundworm
Necator americanus
New world hookworm
Trichinella spiralis
Pork worm
Enerobius vermicularis
Pinworm
Wuchereria spp.
Lymphatic filariasis
lol wut
Life cycle of Ascaris lumbricoides
enters bloodstream and grows there
Then enters the respiratory system to be coughed up and then swallowed into the small intestine
Nematomorpha
Similiar to nematoda, but lack a circulatory system and respiratory system
Tie themselves in knots
Characteristics of Arthropods
Metamerism
Exoskeleton
Paired joints and appendages
Why arthropods are successful
1. Metamerism
2. Exoskeleton
3. Paired appendages
4. Respiratory system
5. sensory organs
6. complex behavior
7. metamorphosis from larva and adult
Subphylum Trilobita
Extinct
Subphylum Chelicerata
Have chelicera
book lungs
2 tagmata
no antennae
4 pairs of walking legs
Two tagmata
prosoma and opisthoma
Class Merostomata
Horseshoe crabs
v old
marine
Class arachnida
Spiders, ticks and mites
oh my
Order Araneae
True spiders
Spinerrets
pedicel
predators
malphigian tubules
have mating displays
oviparious
Order Scorpionida
Scorpions
tropical
noctournal
large pedipalps
stinger
Order Opiliones
Daddy long legs (daddy)
Ovoid shape
no silk or venom
omnivorous
Order Acarina
Mites and ticks
parasites
Pedicel
Conncetion area between the cephalothorax and the abdomen
found in order Aranaea
Spinneret
Produces the silk located in the abdomen
Brown recluse and black widows are ____
Venomous
Anti-venom and medicine
Diseases caused by ticks in Oklahoma
Common dog tick - Rocky mountain spotted fever
Deer tick - Lyme disease
Chiggers
A type of mite that burrows into the skin and leaves a tube of stuff. Itches like hell
How were arthropods able to invade land
Hard exoskeleton kept in water
ect.
Characteristics of Subphylum Myriapoda
Many legs and lots of segments
Broken into two tagma - head and trunk
Terrestrial
Uniramous appendages
Class Diplopoda
Millipedes
Damp environments
Burrows
Detritovores
Repugnatorial glands
Produces cyanide for defense
Class Chilopoda
Centipedes
Moist
Noctounal
poison claw
predators
Dioecious and oviparous
General characteristics of Subphylum Crustacea
Two pairs of antennae
Biramous appendages
Two tagmata in crustaceans
Abdomen and cephalothorax
Appendages in crustcea
Maxillae
Maxillipeds - feeding
Swimmerets - used for swimming
Walking legs
Uropod - end bit
Biramous
Split legs
Feeding strategies
All types of eaters
Circulatory system
Open circulatory
have gills
Reproduction
Dioecious
Have larvae
mixed or direct development
Naupilus larvae (nauplii)
Class Branchipoda
Sea monkeys and fairy shrimp
Class Malocostraca
Crabs, lobsters
Aquatic
Subphylum Hexapoda
Six legs
Uniramous appendages
3 tagma - head, thorax, abdomen
Class insecta
Most successful land animals
Digestion
foregut - midgut - hindgut
Circulatory system
Diffusion
trachae/ spiracles - direct air into the animal through pores
Hemimetabolous and holometabolous
Hemi - nymphs (young resemble the adult forms)
holo - seperate stages (larva then adult)
Communication
Dancing, sounds, pheromones
Caste differentiation
bees, ants, termites
Queen and workers
animals have specific jobs
Phylum Echinodermata
Triploblastic coelomate
Radial symmetry
Ossicles
a small piece of calcified material forming part of the skeleton of an invertebrate animal such as an echinoderm.
Papula (dermal branchiae)
Projections of the coelom through the skin that aid in waste and respiration
Pidicellariae
Small defensive pincer
Water vascular system
Madreporite
Stone canal
Ring canal
radial canal
Ampullae
Pyloric and cardiac stomach
Cardiac is the one that can be pushed out
Pyloric is chemical digestion only
Regeneration and autotomy
Yes they can
autotomy - loosing an arm under threat like a lizards tail
Class Ophiuroidea
Brittle stars and basket stars
walk with their legs
brittle stars and suspension feeders
Class Echinodia
Test
Sea urchins
Aristotles lantern
Eat everything
Class Holothuroidea
Sea cucumbers
Dont have arms but rather tentacles used in feeding
suspension feeders
Evisceration
Throws up the stomach for a defensive mechanism
Why are we concerned with their conservation?
...
Class Crinoidea
Sea lillies adn sea feathers
Suspension feeders
Reproduction
Difference between sea lillies and sea feathers
Sea lillies have a large stalk with 5 things on the end to catch food. Sea feathers dont have a stalk
Phyla Hemichordata
Marine
open circulatory system
bilateral symmetry
pharyngeal gill slits
What do hemichordates use the pharyngeal gills slits for
Suspension feeding
Class Enteropneusta
Intertidal organisms
proboscis
trunk
Class Pterobranchia
Colonial
Proboscis
Five characteristics all chordates have
1. notochord
2. dorsal hollow nerve cord
3. pharyngeal slits or puches
4. endostyle or thyroid
5. postanal tail
Subphylum Urochordata
sea squirts or tunicates
shows the characteristics in the embyro
Subphylum Cephalochordata
Lancelets
Suspension feeders
Bury themselves in the sand
Subphylum Verbrata
The rest of the animals
what we think of most animals
Class Myxini
Hagfish
cartilaginous skull
slime sacs
Class Petromyzontida
Sucking mouth and teeth
Migratory tendencies
Larvae filter feed
Ostracoderms
Armored fishes
Two chracteristics that helped the jawed fishes be successful
Jaws and paired appendages
Class Chondrichthyes
Sharks rays skates
5 things that make this class successful predators
Lightweight
efficient respiration
placoid scales
high sensory function
long lived
Reproduction
Oviparous, ovoviparous, viviparous
Mermaid purses
Class Osteichthyes
Ray finned and lobe finned fishes
Teleost fishes
a fish of a large group that comprises all ray-finned fishes apart from the primitive bichirs, sturgeons, paddlefishes, freshwater garfishes, and bowfins.
Efficient movement of ray finned fishes in water
streamlined shape
mucus
myomeres- zig zagged muscles
Buoyancy in fishes
Sharks - liver
ray finned - air sac
Gas exchange in fishes
Gills
Osmoregulation for freshwater and marine fish
Freshwater - don't drink, dilute urine
marine - actively drink, concentrate urine
Electorreception and electogeneration
Electroreception - fishes can sense the electrical signals used in movement
electrogeneration some make their own electricity. like electric eels
Migration patterns in fish
...
Diggestion, circulation, nervous system, feeding
Intake through the mouth, generally whole.
full digestive system with a stomach and intestines
closed circulatory system with a heart and red blood cells with hemoglobin
nervous system - nerve chord, eyes, chemoreceptors ect.