2.6 Identifying species 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

2.6 Identifying species

• Jacket in your locker
• Put your things on your desk

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 50-51

Lessongoals

• Remember: I can define both a dichotomous key and a branching key.
• Apply: I can successfully use a provided dichotomous key to identify an unknown organism.
• Apply: I can successfully use a provided branching key to identify an unknown organism.
• Understand: I can explain the basic working principle of classification keys to a classmate.

Homework 2.6

Asgmt 22-25

What group best fits these characteristics?
vacuole, cell wall, no chloroplasts

1. plant
2. fungi
3. animal
4. bacterium

What group best fits these characteristics?
nucleus, chloroplast, unicellular

1. plant
2. fungi
3. animal
4. bacterium

What characteristics do you use to recognize this animal?

Identifying

identify a species = 

Recognizing an organism by using its charactistics

Can be done using dichotomous key or branching key

Trained people, can identify without these keys

Helpful words:

elytra = hardened wing that covers real wings underneath

abdomen = end part of the body of an insect, the 'butt' 

visible = that something can be seen

jaws = synonym for teeth

What is the name of this insect?

Dichotomous key

1. Start with 1. determine if a or b is correct.
2. Continue on to the next step, indicated behind your chosen answer
3. End when you have the name of your organism

Helpful words:

elytra = hardened wing that covers real wings underneath

abdomen = end part of the body of an insect, the 'butt'

visible = that something can be seen

jaws = synonym for teeth

Helpful words:

elytra = hardened wing that covers real wings underneath

abdomen = end part of the body of an insect, the 'butt'

visible = that something can be seen

jaws = synonym for teeth

Example: branching key

Start at the top

1

Your answer decides the next step

2

At the end you will have the name of your organism, or in this case its taxonomic group

3

What you should do: 2.6

• TB: Pages 50-51
• WB: Asgmt  22-25
• Lt: Asgmt 1-4

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: 2.6

• TB: Pages 50-51
  
• WB: Asgmt 22-25
  
• Lt: Asgmt 1-4

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

Tidy Duty

3 people each lesson

• Desks: empty and straight
• Chairs:  underneath the desks OR end of day: on the desks
• Floor: no rubbish