Diversity Of Living Organisms
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7 Characteristics of a living organisms
Nutrition Respiration Reproduction Sensitivity Movement Excretion Growth
Virus characteristics
Able to reproduce only within the cells of a host Contain genetic material Have no structure None cellular
Features of molluses
Soft unsegmented bodies Large muscular foot Shells Hump and thin mantle Radula
What is radula
Rasping tounge of molluses
Features of annelida
Long segmented bodies Similar segments Move with bristles Covered by a flexible non- chitinous cuticle
Name the 4 phylum
Arthropoda Annelida Chordata Molluses
Features of Arthropoda
Jointed limbs Bodies have many segments Exoskeleton made up of chitin
Name the 6 classes under Arthropoda
Insecta Crustacea Arachnia Myriapods
2 types of Myriapods
Millipede- safe Centipede- dangerous
Feature of Insecta
Head thorax abdomen 3 pairs of legs Most have wings 1 pair of compound eyes 1 pair of antennae
Features of Arachnia
Cephalothorax and abdomen 4 pairs of legs Chelicerae to seize and poison prey 8 simple compound eyes Leathery exoskeleton
Features of Crustacea
Cephalothorax and abdomen 5 or more pairs of legs Hard exoskeleton made up of calcium salts Compound eyes on stalks Hard shield
Features of Myriapods
Head and truck Many jointed legs One pair of antennae Long segmented trunks
Features of Chordata
Backbone Extended nervous system Spinal chord
Name the classes under Chordata
Mammalia Aves Pisces Amphibia Reptilia
Features of Reptilia
The body is covered in rough- dry scales
Features of Amphibia
Smooth moist skin
Features of Pisces
Fins with bone rays Gills convered by operculum Mouth at anterior end
Features of Aves
Beak Feathers Scales on legs
Features of Mammalia
Hair or fur External earflaps Mammary glands
What are the external earflaps of mammals
Pinnae