3rd quarter Flashcards
Annelida
Segmented worms
Arthropoda
Insects, lobsters, spiders
Chordata
Jawless fish. Cartilaginous fish. Bony fish. Amphibians. Reptiles. Birds. Mammals.
Cnidaria
Jellyfish. Sea anemones
echinodermata
Sea stars. Sea urchens
Mollusca
Clams. Snails. Squids.
Nematoda
Roundworms
Platyhelminthes
Flatworms
Porifera
Sea sponges
Torpor
Deep sleep but not hibernation
The process where a fertilized egg becomes a multicellular zygote is called
Cleavage
When the cells of a blastula move inside the ball to create layers this is called
Gastrulation
What does the endoderm create
The lining of the digestive tract
Phylum Porifera characteristics
🧽
Ectothermic. Heterotrophic. Asymmetrical
Hermaphroditic
Has both male and female parts
Air exchange in all reptiles happens through the use of…
through their skin
Primary function of scales in reptiles is to…
preserve body moisture
oviparous
eggs are hatched after they’ve been laid by the parent
ovoviviparous
eggs are hatched inside the parent
air sacs in birds are for
keeping a regular supply of oxygen coming
what are the general characteristics of organisms in kingdom animalia
heterotrophic, multicellular, organisms require a skeletal structure
endoskeleton
lightweight bones
exoskeleton
Plated outer covering
hydroskeleton
fluid-filled compartment in the body
characteristics of cnidarians
soft bodies that exhibit radial symmetry, two germ layers
which layer is the epithelium
THE OUTER LAYER
they jelly like middle layer is called
mesoglea
the epithelium layer contains
nerve cells and contractile cells
the polyp layer
sessile
medusa layer
free swiming
stinging cells on tentacles are called
cnidocytes
do creatures in phylum cnidaria have respiratory or circulatory systems
no
phylum cnidaira exchange gasses by
diffusion through bodies
class scyphozoa
jellyfish
class anthozoa
sea anemone and coral
phylum echinoderm
sea stars, sea urchins, and sea cucumbers
characteristics of echinoderms
spiny skinned animals, marine animals
Echinoderm means
spiny skin
Echinoderms do NOT have which system
respiratory system
Cnidarians all have 2 germ layers which together make up their
epithelial cells
Coral are part of which class of cnidarians
anthozoa
Visceral mass contains
most of molluscs vital organs
