5.3 -- phyla (bioninja summary) Flashcards
bryophyta
eg moss
- no vascularisation (lacks p/x)
- repro via spores
- no ‘true’ leaves, roots, stems
coniferophyta
eg conifers
- vascularisation
- repro via seeds (in cones)
- narrow leaves, thick waxy cuticle
filicinophyta
eg ferns
- vascularisation
- repro via spores (in sporangia)
- large fronds divided into leaflets
angiospermophyta
- vascularisation
- repro via seeds (fruits)
- flowers as repro organ
plant phyla 4
- bryophyta
- coniferophyta
- filicinophyta
- angiosperophyta
invertabrae phyla
- porifera
- cnidaria
- platyhelmintha
- annelida
- mollusca
- anthropoda
porifera
eg sponges
* Have an asymmetrical body plan
* Have no mouth or anus (have pores)
* May have spicules for structural support
Cnidaria
(e.g. jellyfish and anemones)
* Possess radial symmetry
* Have a mouth but no anus (single opening)
* Has tentacles and stinging cells (cnidocytes)
Platyhelmintha
(e.g. flatworms, tapeworms)
* Possess bilateral symmetry
* Have a mouth but no anus (single opening)
* Has a flattened body (increases SA:Vol ratio)
Annelida
(e.g. earthworms and leeches)
* Possess bilateral symmetry
* Have a separate mouth and anus
* Body composed of ringed segments
Mollusca
(e.g. squids, slugs, snails, bivalves)
* Possess bilateral symmetry
* Have a separate mouth and anus
* Has non-visible segments (may have a shell)
Platyhelmintha
(e.g. flatworms, tapeworms)
* Possess bilateral symmetry
* Have a mouth but no anus (single opening)
* Has a flattened body (increases SA:Vol ratio)
Arthropoda
(e.g. insects, spiders, crustaceans)
* Possess bilateral symmetry
* Have a separate mouth and anus
* Have jointed appendages and exoskeleton
vertebrate classes
- phylum chordata
- fish
- amphibians
- reptiles
- birds
- mammals
Phylum Chordata
(i.e. vertebrates)
* Possess bilateral symmetry
* Have a separate mouth and anus
* Have a notochord (may form a backbone)
fish
- Covered in scales (bony plates of skin)
- Reproduce via external fertilisation
- Breathe through gills and are ectothermic
Amphibians
Have a moist skin (permeable to gases)
* Reproduce via external fertilisation
* Breathe through skin and are ectothermic
reptiles
- Covered in scales (made of keratin)
- Have internal fertilisation (lays soft eggs)
- Breathe via lungs and are ectothermic
birds
- Covered in feathers (made of keratin)
- Have internal fertilisation (lays hard eggs)
- Breathe via lungs and are endothermic
mammals
- Covered in skin (and keratin hair follicles)
- Have internal fertilisation (and lactation)
- Breathe via lungs and are endothermic
