University:
Felician University
Course:
BIO-209 | Evolution
Academic year:

2020
Views:

94

Pages:

1
Author:

Clint W.

BIODIvERSITy Plant Phyla Bryophyta (e.g. liverworts and mosses) • No vascularisation (lacks xylem / phloem) • Reproduce via spores released by stalks • No ‘true’ leaves, roots or stems Coniferophyta (e.g. conifers) • Have vascularisation (xylem and phloem) • Reproduce via seeds (found in cones) • Narrow leaves with a thick, waxy cuticle Filicinophyta (e.g. ferns) • Have vascularisation (xylem and phloem) • Reproduce via spores in sporangia • Have large fronds divided into leaflets Angiospermophyta (e.g. flowering plants) • Have vascularisation (xylem and phloem) • Reproduce via seeds (found in fruits) • Have flowers as reproductive organs Invertebrate Phyla Porifera (e.g. sponges) • Have an asymmetrical body plan • Have no mouth or anus (have pores) • May have spicules for structural support Annelida (e.g. earthworms and leeches) • Possess bilateral symmetry • Have a separate mouth and anus • Body composed of ringed segments Cnidaria (e.g. jellyfish and anemones) • Possess radial symmetry • Have a mouth but no anus (single opening) • Has tentacles and stinging cells (cnidocytes) 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 (i.e. vertebrates) • Possess bilateral symmetry • Have a separate mouth and anus • Have a notochord (may form a backbone) Reptiles • Covered in scales (made of keratin) • Have internal fertilisation (lays soft eggs) • Breathe via lungs and are ectothermic Fish • Covered in scales (bony plates of skin) • Reproduce via external fertilisation • Breathe through gills and are ectothermic Birds • Covered in feathers (made of keratin) • Have internal fertilisation (lays hard eggs) • Breathe via lungs and are endothermic Amphibians • Have a moist skin (permeable to gases) • Reproduce via external fertilisation • Breathe through skin and are ectothermic Mammals • Covered in skin (and keratin hair follicles) • Have internal fertilisation (and lactation) • Breathe via lungs and are endothermic