类别 全部 - traits - ancestor - bonds - organelles

作者:Faun Holley 3 年以前

391

Organigram

Throughout the evolutionary history of life on Earth, various groups of organisms have diversified from common ancestors, each developing unique characteristics. Eukaryotes and Archaea, for example, share a common ancestor that lacked peptidoglycan and had histones and multiple RNA types.

Organigram

Common Ancestor for All Life -ester bonds -DNA present

Eukarya and Archaea Common Ancestor -presence of histones -multiple RNA -no peptidoglycan

Archaea
No membrane bound organelles

No chromosomes in nucleus

Ether bonds

Eukarya -membrane bound organelles -chromosomes in membrane bound nucleus
Excavata -feeding groove -secondary plastids
SAR Clade

Rhizaria -filose pseudopodia

Foraminifera

Radiolarians

Common ancestor of Stramenopila and Alveolata

Alveolata -membrane vesicles -secondary plastids -Dinoflagellates have secondary or tertiary plastids

Stramenopiles -tripartite flagellar hair -secondary plastida

Kelp

Diatoms

Unikonta -heterotrophic

Amebozoa -pseudopiles

Opisthokonta -single posterior flagellum on swimming cells -absorptive heterotrophy

Kingdom Fungi -multicellularity -chitin cell wall -zygotic life cycle with dikaryotic stage

Common Ancestor of Choanoflagellatea and animals

Kingdom Animalia -multicellularity -mobility -complex organ systems -gametic life cycle

Eumetazoa -tissues

Cnidaria -radial symmetry -diploblasty

Anthozoa -usually only polyp

Medusozoa

Scyphozoa -usually only medusa

Hydrozoa -polyp and medusa

Bilateria -triploblasty -bilateral symmetry -cephalization

Protostomia -spiral and determinate cleavage -blastopore becomes mouth

Ecdysozoa -ecdysis -metamorphosis (most)

Nematoda -round worms -free-living and parasitic -cuticle -pseudocoelom -complete digestive tract

Anthropoda -"jointed foot" -segmented -exoskeleton made of chitin -complete digestive tract -open circulatory system

Chelicerates -cephalothorax and abdomen -4 pairs of walking legs, pedipalps, chelicerae

Pancrustaceans

Hexapoda -six legs -insects -many have wings (crucial to their success as a group) -head, thorax, abdomen

Crustaceans -cephalothorax

Lophotrochozoa -lophophore and/or trocophore larvae

Common ancestor of Mollusca and Annelids

Mollusca -soft-bodied -foot, visceral mass, mantle -coelomates -organ systems

Bivalvia -two-part shell

Cephalopoda -reduced or absent shell (except nautilus) -closed circulatory system

Gastropoda

Annelida -segmented worms -closed circulatory system -complete digestive tract

Platyhelminthes -acoelomates -incomplete digestive tract -no respiratory or circulatory system

Tapeworms -parasitic -no digestive

Trematodes -parasitic

Free-living Rhabditophorans

Deuterostomia -radial and indeterminate cleavage

Echinodermata -"spiny skin" -water vascular system -adults radially symmetrical, larvae are bilaterally symmetrical -no brain -complete digestive tract

Asteroidea -sea stars

Echinoidea -sea urchins and sand dollars

Ophiuroidea -brittle stars

Holothuroidea -sea cucumbers

Chordata -notochord -dorsal nerve cord -pharyngeal slits -endostyle

Cephalochordata

Common Ancestor of vertebrates and urochordates

Urochordata

Vertebrata -cranium -vertebral column

Agnathans (Cyclostoma)

Myxini (hagfish)

Petromyzontida (lampreys)

Gnathostomes -jaws -bony skeleton

Osteichthyes (bony fishes) -lungs/ lung derivatives

Lobe-finned fishes (Sarcopterygii) -skeleton extends into the fin

Coelocanths

Common ancestor of lungfishes and tetrapods

Lungfishes

Tetrapods -4 limbs with digits

Amniotes -amniotic egg

Reptiles -ectothermic

Archosaurs

Common ancestor of birds and crocodilians

Crocodilians

Birds (Aves)

Turtles

Lepidosaurs (snakes, lizards, amphisbaenians)

Mammals -hair -milk

Monotremes -egg-laying mammals

Common ancestor of Marsupials and Eutherians

Marsupials

Eutherians

Amphibians -non-amniotic egg

Ray-finned fishes (actinopterygii)

Chondrichthyes -bony skeleton lost -cartilaginous skeleton in extant species

Porifera -asymmetry -no tissues

Choanoflagellatea

Archaeplastida -primary plastids

Rhodophyta -phycoerythrin photosynthetic agent

Common ancestor of chlorophytes, charophytes, and land plants -Chlorophyll a & b and b-carotene (traits chart) -Cellulose-rich cell walls (traits chart)

Chlorophytes

Common ancestor of charophytes and land plants -ring-shaped cellulose-synthesizing proteins (traits chart) -phramgoplast

Charophytes Braun's stonewort -zygotic life cycle

Common ancestor of land plants -sporic life cycle -embryo -dessication-resistant spores -gametangia -sporangia

Liverworts Common Liverwort

Common ancestor of mosses, hornworts, lycophytes, monilophytes, gymnosperms, angiosperms

Mosses Wooly Feather Moss

Common ancestor of hornworts, lycophytes, monilophytes, gymnosperms, angiosperms

Hornworts Field Hornwort

Common ancestor of lycophytes, monilophytes, gymnosperms, angiosperms -Lignin -xylem and phloem -thick waxy cuticle -stomata -leaves

Lycophytes Fan clubmoss

Common ancestor of monilophytes, gymnosperms, angiosperms -megaphylls

Monilophytes Eastern Marsh Fern

Common ancestor of gymnosperms and angiosperms -pollen -seeds -heterospory -wood -ovules

Angiosperms -endosperm -fruit -flowers -ovaries

White Water Lily

Southern Magnolia

Gymnosperms

Scotts Pine

Bald Cypress

Bacteria -simple RNA polymerase -no histones -no membrane bound organelles -membrane bound nucleus -cell wall contains peptidoglycan