unit 2 classification

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Unit 2 Classification

Little excercise

Think about a closet. It contains a lot of things that need to be organised. 

1. Think about all the things you can find in a closet and write them down.

2. How can you organise all the things you just wrote down? Put those things in groups and give those groups a name (Pants, etc...).

3. Sometimes you can make smaller groups within a group by looking at the characteristics. Classify the groups based on their characteristics (Blue pants, etc...)

Classifying organisms

Based on:

• Morphology: build and structure
• DNA

Classifying based on characteristics

Unit 2 Classification

2.1 Welkom to the group 

2.4 Animals

2.5 the kindom of plants

2.6 Indentify species

2.1 Welcome to the group

• Organising things is called: Classification
• Taxonomic group/taxon: the groups scientist have made to organise living things
• the binomial system: the system in which each organism is named after ist genus, the first part of its name and is species, the second part. 
• kingdom: the largest taxon, at the upper level
• species: the smallest taxon, at the botom level

the four kindoms

the four kindoms

Unit 2 Classification

Characteristics of animals

do have                     don't have

cell membrane       cell wall

cytoplasm                vacuole

mitochondria          chloroplasts 

nucleus 

                

reproduction

sexual

asexual 

native animals of the Netherlands

www.natuurmonumenten.nl

Common plants, birds and insects of the Netherlands

on page 182-184.

Exotics: species that have been brought to an area on purpose or by accident, but manage to survive in that area. 

Tijgermug     tiger musquito.  

Stegomya albopicta

Native to the south east of Asia. Is has spread to many countries through the transport of goods. The larva hides in the bamboo. 

It is able to spread viruses who are tropical diseases.

en.wikipedia.org

what is a native animal in the Netherlands?

1. rabbit (konijn)
2. Brown rat
3. red crayfish (rivierkreeft)
4. great tit (koolmees)

The red crayfish is an 

invasive exotic.

The red crayfish is native to 

the United States.

Since his introduction is had out-competed the native European crayfish

In what way did the red greyfish out-competed the European crayfish? (answer in the next slide)

Why did the red crayfish out-competed the European grayfish

1. by a fungus what causes a deadly plaque
2. it can survive in a wider range of habitats
3. it can survive better in dry periode.
4. it can migrate from one pond to another

Amoebae proteus

pseudopodia, which means 'false foot"

engulfing food

unicellular

Bacteria have a nucleus

1. True
2. False

Are bacteria unicellular or multi-cellular?

Name 3 some reasons why bacteria can be useful for us

How do bacteria reproduce?

Fungi cells have chloroplasts

1. True
2. False

Is Fungi unicellular or multicellular?

What is the correct definition of 'species'?

Unit 2 Classification

Today

• Check your work: 2.4 exercise 17
• Discuss 2.5 The kingdom of plants
• Make the exercises 2.5

• Finish your wordlist

characteristics of plants

do have:

nucleus.             vacuole

cell wall              cellmenbrane

cytoplasm         chloroplasts 

Photosynthesis:

Water + Caron dioxide + light        Glucose + Oxygen

H₂O    +          CO₂             + light        C₆H₁₂O₆ + O₂

Algae

               unicellular                        multicellular

              sea sparkle                         seaweed

Plants

Spores

seeds

mosses &

liverworts

ferns

gymnosperms

(non-flowering)

angiosperms

(flowering) 

Mosses & liverworts

simple leaves

no proper tems or roots

spores inside capsules

Mosses & liverworts

simple leaves

no proper sterns

spores inside capsules

Ferns

• leaves
• true roots
• strong sterns
• vascular system
• spores inside patches, called 

    sporangia

Gymnosperms ( non-flowering)

conifers: Seeds naked and develop in cones. 

male: pollen: seeds

They have needle shape leaves to minimise water loss

Angiosperms (flowering plants)

Unit 2 Classification

Camouflage or mimicry?

1. Camouflage
2. Mimicry

Camouflage or mimicry?

1. Camouflage
2. Mimicry

Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification.

A branching key.

This key contains descriptions

that branch out into even more descriptions, ending in the names of the organisms or items.