2.6 identifying species

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Welcome!

Today:

Discussing homework (WB page 43)

Repeating paragraph 2.5 

Explaining paragraph 2.6 (TB page 50)

Getting to work

Which group of plants has the least organs?

1. Fern
2. Moss
3. Gymnosperm
4. Angiosperm

Which group of plants can make flowers?

1. Fern
2. Moss
3. Gymnosperm
4. Angiosperm

Which group of plants grow on stone?

1. Moss
2. Gymnosperm
3. Angiosperm
4. Liverwort

Which group of plants use a cone to reproduce?

1. Moss
2. Gymnosperm
3. Angiosperm
4. Liverwort

Which groups of plants use the wind to spread offspring?

What are we going to learn today?

Today we'll be learning:

What a dichotomous key is.

Where we use a dichotomous key for. 

How we can use a dichotomous key. 

Dichotomous key

A dichotomous key is a list of questions that we use to identify a organism based on its appearance. 

Is is often brought with biologists in the field to help them identify the species in the area, 

Dichotomous key (branching)

Exercise

Using the dichotomous key that is listed in paragraph 2.6, I want you to identify the species that you see on each slide. 

While you do that I want you to write down the route you took in your notebook. (example 1b --> 2a --> 3a)

Exercise 1 

Exercise 2

Exercise 3

Exercise 4

Get to work!

The homework for coming friday are the exercises of paragraph 2.6 in your workbook. You can start with that right now.