Biological Classification

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​Classification  and dichotomous keys

What is Biology? It is the study of all things living.

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What is classification? ​Classification is a way of organizing things into orderly groups.

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Who are taxonomist? ​They sort living things into orderly groups, this is a form of classification called "taxonomy"

​Biology is the study of all things living.

classification is a way of organising things into orderly groups. ​

Taxonomist are a type of biologist who sort LIVING things into orderly groups. This is called taxonomy. ​

Multiple Select

What is classification and what is taxonomy? select two answers.

• Classification is a way of organising things into orderly groups

• grouping things

• Taxonomy is a way of organising LIVING things.

• the study of all things living

​All living things are made up of cells

Taxonomist use the acronym MRS GREN to determine if something is living or not.

Move

Respire

Senesitivity

Grow

Reproduce

Excrete

Nutrients​

Subject | Subject

taxonomist determine if something is living using 7 key characteristics these are; ​

Move

Respire

Sensitivity

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Grow

Reproduce

Excrete

N​utrients

Subject | Subject

​All living things Move.

All living things breath (respiration).​

All living things respond to change (sensitivity).

All living things need food and nutrients (nutrients)

All living things grow.

All living things produce reproduce (reproduce).

All living things produce waste (excretion).

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on the next slide connect the statement with the matching word; for example match responds to changes with sensitivity. ​

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​MRS GREN, the 7 characteristics of living things.

Draw

Match the statement with the word!

Taxonomists sort living things into 7 main groups.

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Kingdom – the most diversity

Phylum

Class

Order

Family

Genus

Species – the most similarity

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​​Linnaeus classification!

Multiple Choice

Select the correct order of classifications for linnaeus taxonomy! starting with kingdom in the largest domain

• Kingdom

  Phylum

  class

  order

  family

  genus

  species

• kingdom

  class

  species

  genus

  phylum

  order

  family

• Species

  genus

  family

  order

  class

  phylum

  kingdom

• Kingdom

  kigndom

  genus

  family

  phylum

  order

  genus

​Classification and dichotomous keys.

Classification and dichotomous keys

​Remember, classification is the process of sorting things into orderly groups. when we wort living things into orderly group we call this taxonomy and this is done by taxonomist.

​Food in a supermarket

​Vegetables

​Meat

​fruits

​ carrot and celery chicken and beef apple and grapes

Multiple Choice

Keys are used in biology to sort living things into groups. Keys are charts and special tables. How do they work?

• It consist of a series of choices that lead the user to the correct name of the given object or things

• Keys are used to unlock doors and charts are for graphing living things in order to characterise them.

Open Ended

try using this key in order to identify the shapes.

Example: (number 1)

Step one: it has a tail

Step two: it has four or more tails

Step three: it is a spiral shape.

The shape is a spiralfourtail.

Now you try identify 2,3,4,5 & 6.

Open Ended

use this key to identify the shape show your working in steps, example: Shape one

Step one: it has a tail

Step two: it has four tails

Step three: it is spiral shaped

The shape is a spiralfourtail.

​Remember dichotomous means divided in 2 parts.

A dichotomous key is a key like the one previously that always uses two choices only. ​

​They chart in this slide shows more than two options to choose from! so this is not a dichotomous key.

Open Ended

Is this a dichotomous key? explain why you chose this answer!

Open Ended

is this a dichotomous key? , explain your answer!

Open Ended

is this a dichotomous key? explain your answer. remember dichotomous keys only show two options for each question.

​Take note of these guidelines, you will need to know how to make a key for your task.

Multiple Choice

What is classification and who are taxonomist?

• Classification is a way of grouping things into orderly groups.

  Taxonomist sort LIVING things into orderly groups this is called taxonomy.

• living things, like plants and animals.

​Ask miss for identifying crazy critters activity!