What are the 3 domains of life? | eukarya = eukaryotic organisms (membrane bound nucleus)
archaea = extremophilic prokaryotic organisms (lack nucleus)
eubacteria= common prokaryotic organisms (lack nucleus) |
What is the hierarchy of taxa? Katy Perry Came Over For Grape Soda | Kingdom
Phyla
Class
Order
Family
Genus
Species |
What are the 3 types of classification? | artificial
natural
phylogenetic |
What is the full classification for humans? ACMPHHS | K = Animalia
P = Chordata
C = Mammalia
O = Primate
F = Hominidae
G = Homo
S = sapiens |
What are the 4 Plant phyla? | Bryophyta
Coniferophyta
Filicinophyta
Angiospermophyta |
What are the 7 Animal Phyla? | Porifera
Cnidaria
Platyhelmintha
Annelida
Mollusca
Arthropoda
Chordata |
What are the features of bryophyta? (7) | don't have true roots or leaves
no vascularisation (xylem and phloem)
release sporangia to reproduce
have a root like structure called rhizoid to anchor them
Prevent flooding
found in clumps in damp places like swamps
EG: Mosses and liverworts |
What are the features of filicinophyta? (6) | vascular
pinnate leaves
no seeds
shallow roots
reproduce by spores on the underside of the leave (sori)
EG: Ferns |
What are the features of coniferophyta? (5) | woody stems and waxy needlelike leaves
vascular
non motile seeds ( male and female cones)
provide shelter
EG: Pine trees |
What are the features of angiospermophyta? (5) | vascular
reproduce by seeds in ovules (can become fruits)
mono / dicotyledons
transfer pollen from anther to stigma to reproduce
EG: flowers and grasses |
What are the features of porifera? (8) | sponges full of water
no mouth or anus
calcium spicules for structure
aquatic
sessile (Stay in place)
asymetrical
reproduce by releasing egg and sperm separately / budding
EG: sea sponges |
What are the feature for cnidaria? (6) | radial
cnidocytes (tentacles with stinging cells) used for capturing prey
mouth no anus
corals secrete CaCO3 skeleton
EG: anemones, jellyfish |
What are the features of Platyhelminths? (5) | flattened body shape (large S:vol ratio)
mouth no anus
bilateral
can be parasitic and live within a host organism
eg: tapeworms and planaria |
What are the features of annelida? (5) | bilateral
ringed segments
mouth and anus
move by peristaltic contraction
EG: earthworms and leeches |
What are the features of mollusca? (7) | bilateral
mouth and anus
visceral mass
mantle
muscular foot
can have a shell
eg: snails, octopi, clams |
What are the features of arthropoda? (5) | bilateral
mouth and anus
jointed segments
hard chitin exoskeleton
EG: spiders and scorpions |
What are the features of chordata? (4) | all vertebrates
bilateral
mouth and anus
notochord and hollow dorsal nerve tube = backbone |
What are the features of fish? (6) | covered in scales made out of bony plates
external fertilisation
breathe through gills
ectothermic (doesn't maintain body temp)
swim bladder
EG: Zebrafish |
What are the features of amphibians? (6) | moist skin (permeable to gases and water)
external fertilisation
breathe through skin but also have simple lungs
ectothermic
larval in water and adult on land
EG: frogs and salamanders |
What are the features of reptiles? (7) | covered in keratin scales
soft shelled eggs
internal fertilisation
lungs with extensive folding
ectothermic
simple teeth
EG: lizards |
What are the features of birds? (6) | covered in keratin feathers
hard shelled eggs
breathe through lungs with parabronchial tubes
maintain body temp
wings and beaks (no teeth)
EG: sparrows |
What are the features of mammals? (7) | skin has keratin hair follicles
live births
internal fertilisation
breathe through lungs with alveoli
maintain body temp
feed young with milk from mammary glands
EG: elephants |