Origin Of Life
Bacteria
-Esther linkage
-DNA as genetic storage
-Presense of peptidoglycan
common ancestor of Eukarya
and Archaea
Archaea (ex. Methanobrevibractor smitii)
-Ether bonds in cell membrane
-DNA as genetic storage
-Presence of histones
Eukarya
(Ursus americanus)
-Presence of membrane bound organelle
-Presence of membrane bound nucleus
Unikota
Amebozoa
*movement w/ pseudopodia
(Ex slime mold)
Opistokonta
single posterior flagellum on swimming cells
Opisthokonta
(Ex Black Bread mold and fungi)
Common ancestor of choanoflagellate and Animalia
Animalia
-multicellular
-mobility
-game tic life style
eumetazoa
•tissue
bilateria
bilateral symmetry
tripoblasty, cephalization
protostomia
spiral and determinate cleavage
bloastopore becomes mouth
lophotrochozoa
trochopore larvae
lohopore
Ancestor of annelids and mollusca
annelids body resembles a series of fused rings
(common earthworm)
mollusca ( soft bodied organisms with protective shell
gastropoda move in a small pace by a rippling like motion of their foot (golden apple snail)
cephalopoda foot becomes modified into a muscular excurrent siphon and part of the tentacle has no hard shell (humboltd squid)
bivalva shell is divided in two and are hinged together (soft shell clam)
platyhelminthes
flatworms
rhabditophorans fresh water and marine species
cestoda (pork tapeworm) parasites
trematoda (sheep liver fluke) parasites
free diving rhabditophorans (pseudobiceros sp.)
ecdyszoa
ecdysis
nematoda
roundworm
arthropods-
chesapeake blue crab and monarch butterfly
common ancestor of hexapoda and crustacea
hexapoda have wings and dont need to sacrifice legs (monarch butterfly)
crustacea highly specialisde apendiages two pair of antennae (cheaspeake blue crab
chelicerata clawlike feeding appendage that work as fangs or pincers (sothern black widow)
deutrostomia
-radial and indeterminate cleavage, blastopore becomes the anus
common ancestor of echinodermata and hemichordata
echinodermata
water vascular system
asteroidea arms radiating from the centeral disc and have tube feet on the underside (giant sea star)
holothuroidea lack spines (california sea cucumber)
echinoidea has no arms (purple sea urchin)
ophiuroidea has flexible arms (serpent star)
chordata
notochord,
hollow dorsal nerve cord, post anal fin,pharyngeal slits
vertebrate
vertebral column
cranium cartilaginous skeleton
gnathostomes
jaws
bony skeleton
osteichthyes
lungs/lung derivatives
tetrapods
limbs with digits
amniotes
amniotic egg
reptilia
lapidosaurs (green anole)
turtles (green sea turtle)
crocodilians (american alligator)
birds
endothermy (roseata spoonbill)
mammalia
hair
milk
endothermy
american black bear
amphibia (red eye tree frog)
lung fishes (leopard lungfish)
lobe-finned fishes (coelacanth)
ray-finned fishes (blue tang)
agnathans (pacific hagfish)
cephalochordata lancelata (branchiostma lanceolatum)
cnidaria radiosymmetry and diploblasty
anthozoa occur only on polyps (elkhorn coral)
common ancestor of hydrozoa and scyphozoa
scyphozoa produce a medusa (jellies)
hydrozoa alternate between the polyp and medusa (pennaria disticha)
porifera
giant barrel sponge
Choanoflagellates
Common ancestor of fungi and Nuclearlids
Nuclearlids
Nuclearlid
(Nucleria thermophilia)
Fungi
Multicellular
Chitin cell wall
Zygote can life cycle
(Fly Agaric) Amanita muscarla
Black bread mold
(Rhizopus stolonifer)
Archaeplastida
*primary plastids
(Ex Southern Magnolia)
common ancestor of
chlorophytes, charophytes, and land plants
common ancestor of land plants
and charophytes
Land plants
-sporic life cycle
-embroyos
-apical meristem
liverwort
common liverwort
moss
wooly feather moss
Fan clubmoss
common ancestor of seedless vascular plants lignins
,xylem and pholem leaves,dominant sporophyte generation, thick waxy cuticle, and stomata
lycophytes
common ancestor of Monilophyte, gymosperms, and Angiosperms, Mehaphylis
monilophytes
Eastern Marsh Fern
(Thelypteris palustris)
Common Ancestor of seen plants seeds, pollen,wood,heterospory,ovules
Gymnosperm
Scots Pine
(Pinus sylvestris)
Bald cypress
(Taxodium distichum)
Angiosperm
flowers, fruits,Endosperm, ovaries
Southers Magnolia
(Magnolia grandiflora)
White Water Lily
(Nymphaea alba)
Green Algae
Charophyte
chlorophyte braun stonewart
chlorophytes
SAR Clade
Rhizaria
filose pseudopodia
(Ex Radiolarian)
(Ex Foraminiferas)
secondary plastids
Strameopila (Diatoms)
tripartite flagellar hair
(Ex macrocystic purifiers)
Alveolata
membranous vesicle on cell membrane
(Ex Dino flagellates)
Excavata
-feeding grove
-secondary plastids
(Ex Euglanosids)