Zusammenfassung der Ressource
Topic A: Diversity of Life
- Species & Genus
- Species are a group of organisms with similar characteristics which are able to interbreed and produce fertile offspring.
- Genus are a group of similar species.
- Keep Penis Clean or Forget getting Sex: Kingdom, Phylum, Class, Order, Family, Genus, Species
- Phyla of Plants
- Bryophytes
- No Roots, structures similar to root hair called Rhizoids, Mosses have stems and simple leaves.
- 0.5 m, Spores are produced in capsules and developed at the end of a stalk.
- Filicinophytes
- Have roots, stems and short non-woody stems. Leaves usually divided into leaflets and curled up in a bud.
- 15 m, spores are produced in Sporangia on the underside of leaves
- Coniferophytes
- Roots, leaves and woody stems. Leaves narrow, with thick waxy cuticles.
- 100m; seeds produced in ovules of female cones. Male cones produce pollens.
- Angiospermophytes
- Roots, leaves and stems.
- Stems of flowering plants develop into shrubs or trees that are woody
- 100 m; seeds are produced from ovules inside ovaries. Ovaries are part of the flowers. Fruit develops from the ovaries and disperse seeds.
- Phyla of Animals
- Porifera: No clear symmetry; pores through body; no mouth or anus; attached to a surface (e.g. Sponges)
- Cnidaria: Radically symmetric, tentacles, stinging cells, mouth but no anus (e.g. Jellyfish)
- Platyhelminths: Bilaterally symmetrical, flat bodies, unsegmented, mouth but no anus (e.g. tapeworm)
- Annelida: Bilaterally symmetric, bristles present, segmented, mouth and anus
- Mollusca: Muscular foot and mantle, shell may present, segmentation not visible, mouth and anus (e.g. snails)
- Arthropoda: Bilaterally symmetric, exoskeleton, segmented, jointed appendages (e.g Spiders and insects)
- Evolution is the cumulative change in the heritable characteristics of a population