• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/60

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

60 Cards in this Set

  • Front
  • Back
Name four animal characteristics
1. eukaryotic
2. lack cell walls
3. multicellular
4. heterotrophs that ingest food
invertebrate
No back bone
vertebrate
has a backbone
sponge characteristics
1. lack true tissues and organs
2. body consists of 2 layers of cells
sponge feeding
filter bacteria and other food particles from water that passes through pores in the bodies
sessile
anchored in place. cant's run and hide
cnidarian characteristics
1. radial symmetry
2. tentacles with stinging cells
radial symmetry
body parts arranged like a pie, divides into identical pieces
cnidarian examples
hydra, jellyfish, sea anemonies, and coral animals
cnidocyte
stinging cells
nematocyst
fine coiled tubule with a poisonous barb at the end
polyp
cylindrical body with tentacles radiating from one end (Ex: hydras)
medusa
umbrella shaped form with fringes of tentacles hanging down (Ex: jellyfish)
bilateral symmetry
mirror immage left and right parts
flatworms (hint: planaria, blood fluke, tapeworms)
1. incomplete (only one opening) digestive system
2. bilateral symmetry
roundworm (hint: hookworms, pinworms, threadworms, rotifers)
1. complete digestive system (2 openings)
2. bilateral symmetry
annelid (hint: earthworms, leeches)
1. segmented
2. closed circulatory system (blood is in vessels)
coelem
fluid filled cavity lined with tissue
acoelemate (hint: flatworm)
no body cavity
coelemate (hint: earthworm)
has a coelem
pseudocoetemate (hint: roundworm)
fluid, no tissue
mollusk
1. all have a foot and a mantle (produces the shell)
2. have an open circulatory system
open circulatory system
1. no vessels
2. organs bathed in blood
gastropod
stomach foot
bivalve
two halves hinged
cephalopods
head and foot
echinoderm
1. no body segments
2. radial symmetry
endoskeleton
internal skeleton
cambrian explosion
burst of animal life
arthropod
1. jointed legs
2. segmented bodies
3. exoskeletons
4. most numerous and most diverse animals on Earth
crustacean
arthropod that lives in water
arachnid
8 legs
chordate
1. has a notochord, a flexible rod through the body
2. hollow nerve chord that becomes the brain and spinal chord
3. pharyngeal slits
4. a tail
invertebrate chordates
includes tunicate and lancelets. Adults do not have a notochord, nerve chord, or tail.
vertebrate chordates
have a skull and a backbone that protect the brain and spinal chord. the backbone is made of bones called vertebrate. all have an internal skeleton called an endoskeleton
tetrapods
means fourfooted
cartilaginous fish
flexible skeleton made up of cartilage
bony fish
fish that have skeletons made up of cartilage
bony fish
fish that have skeletons made of calcium hardened bone
lateral line system
sensory organs along sides of body. allows fish to detect vibrations and changes in water pressure
operculum
protective flap that covers the gills. movement of flap allows O2 to enter gills. sharks do not have this and must constantly swim
swim bladder
a gas filled sac that allows for control of buoyancy. allows fish to be motionless in the water.
amphibian
1. living a double life
2. go through metamorphisis
3. get oxygen through skin by diffusion and lungs
amniote
1. amniotic egg (waterproof egg with shell)
2. internal fertilization
3. watertight skin
4. carotine
ectotherm
gets heat from the environment
endotherm
get head from cell metabolism
three groups of reptiles
1. snakes and lizards
2. alligators and crocodiles (very complex brains) (more closely related to birds than lizards)
3. turtles
bird characteristics
1. endothermal amniotes with adaptations for flight
adaptations for flight (birds)
1. feathers - modified scales made of carotin
2. bones - honeycombed structure that makes them strong but light
3. air sac - supply high levels of oxygen for ATP and make bird light so it can fly
bird origins
fossil evidence shows birds are descendents of dinosaurs
(Archaeopteryx)
gizzard
sac that contains small stones to grind seeds
crop
stores food temporarily
bird heart
has four chambers
mammals
1. mammary glands
2. hair
monotreme
mammal that lays eggs and are only found in Australia (platypus and echidna)
marsupial
"pouched mammals". Embreyos are born before developed and finish developing in the pounch
placental
developed in the uterus. placenta provides nutrients and oxygen and removes waste products
innate behavior
behavior that is performed by all individuals of a species even without prior experience
fixed action pattern
innate behavior that happens as an unchangeable sequence of actions cannot be interrupted or changed. a FAP is triggered by a stimulus.
circadium rhythmn
25 hour biological clock. animals have repeated behavior patterns based on environmental factors.