Classificationof living organisms

The Kingdoms

All living things are divided into 5 kingdoms:

1. Prokaryotes - Single celled organisms.

The Kingdoms

All living things are divided into 5 kingdoms:

1. Prokaryotes - Single celled organisms.2. Protoctista

The Kingdoms

All living things are divided into 5 kingdoms:

1. Prokaryotes - Single celled organisms.2. Protoctista3. Fungi

The Kingdoms

All living things are divided into 5 kingdoms:

1. Prokaryotes - Single celled organisms.2. Protoctista3. Fungi4. Plants

The Kingdoms

All living things are divided into 5 kingdoms:

1. Prokaryotes - Single celled organisms.2. Protoctista3. Fungi4. Plants5. Animals

The Animal kingdom

We will often focus on Invertebrates.

Invertebrates make up 97% of all animal species (the other 3% are mammals, birds, fish, reptiles & amphibians).

This means there are a lot of different species to identify!

However, we can sort them into smaller groups called classes and then into orders.

The invertebrates we are likely to find fall into 6

classes:• Crustaceans• Arachnids• Molluscs• Worms• Myriapods• Insects

Use the information cards to sort the invertebrates into their different classes.

Invertebrate Facts• About 75% of all species described are

invertebrates• It is estimated that

10,000,000,000,000,000,000 (or ten million, million, million) individual invertebrates are on the planet at any one time.

• An average brood of Great Tit chicks will consume around 120,000 caterpillars whilst they are in the nest

• 1 in 3 mouthfuls of food contain insect pollinated products.

• Malaria kills one person every 12 seconds

The Plant kingdom

We will often focus on Flowering Plants.

These can be divided into two groups:

*Those with a vascular system of phloem and xylem and true roots.

* Those without - usually smaller plants with gaseous exchange across membranes and through pores and fibrous rhizoids rather than roots.

The Plant kingdom

Vascular:* Ferns* Conifers* Flowering Plants

Non-vascular* Mosses* Liverworts

Plant Facts• 400,000 Plant species worldwide

• 20% of UK Flora is threatened

• Plants provide the photosynthetic pathways that capture sunlight energy for our food chains

• Plant science inform agriculture, conservation, horticulture and environmental issues.

The Classification SystemKingdom - largest, most diverse

Phylum Class

OrderFamily

GenusSpecies-smallest,

least diverse

Increasinglyspecific

Crustaceans

• Shell-like exoskeleton• Variable number of body segments• Antennae• 14 legs• No wings

Worms

• No exoskeleton• Lots of body segments• No antennae• No legs• No wings

Arachnids

• Exoskeleton• 2 body segments• No antennae• 8 legs• No wings

Molluscs

• No exoskeleton• 1 Body segment• Eyes on tentacles• No legs• No wings

Myriapods

• Exoskeleton• Lots of body segments• Antennae• At least 14 legs• No wings

Insects

• Exoskeleton• 3 Body segments• Antennae• 6 legs• 2 or 4 wings

We can divide the insects into smaller groups called orders:• Butterflies & Moths (Lepidoptera)• Lacewings (Neuroptera)• Dragonflies & Damselflies (Odonata)• Bugs (Hemiptera)• Beetles (Coleoptera)• Flies (Diptera)• Bees, ants & wasps (Hymenoptera)

The Classification SystemKingdom - largest, most diverse

Phylum eg Arthropoda

Class eg Insecta

Order eg Coleoptera

Family eg Carabidae

Genus eg Carabus

Species-eg Carabus nitens