3.01 --> Diversity and Classifications

What is biodiversity?

The measure of the variety and number of life forms on earth

What are ecosystems?

They are made up of different species and their physical environments

What do ecosystems lead to?

Diversity of species interactions and diversity of habitat or structural diversity

What are the five things the loss of biodiversity can do?

1. Threaten Food Supply
2. Eliminate sources of natural medicines
3. significantly impact tourism
4. Significantly impact forestry
5. Impact/disrupt biogeochemical cycles

What is biological classification?

Systematic grouping of organisms into categories on the basis of defined characteristics

What is an example of biological classification?

Classifying organisms as producers, consumers, or decomposers.

What is taxonomy?

Science of identifying and classifying all organisms

Why is taxonomy a challenging science?

It is challenging because there are millions of species living on earth and countless extinct species

What are 5 things an organism could be identified as before you can classify it?

1. Morphology
2. Behaviour
3. Geographical
4. Location
5. Dna

What is Carl Linnaeus considered to be?

The father of Taxonomy

What did Carl Linnaeus introduce?

A consistent way of grouping species according to their morphological or physical similarities

What did Linnaeus group things into?

Genera

What did everything in a genus have?

They shared physical characteristics

What did Linnaeus develop?

Binomial nomenclature

How do you use binomial nomenclature?

First word --> The genus
Second word --> The specific name

What can we tell from the name of a species?

If the specie is similar to another or not

List two reasons why is taxonomy important?

1. Binomial nomenclature is universally understood.

2. Common names can also be confusing sometimes

Give an example of why taxonomy is important?

Ladybugs are actually beetles

What is a dichotomous key?

A tool that allows a user to determine the identity of items in the natural world based in characteristics

What does dichotomous mean?

Divided into 2 parts

Give an example of dichotomous?

Dichotomous keys always give 2 distinct choices in each step that are often opportunities

What are 5 tips to making a dichotomous key?

1. Use constant characteristics

2. Use measurements over descriptive words

3. Make the choice positive

4. Structure statements similarity

5. Finish the key with a full description of the organism

What are the three levels of biodiversity?

1. Genetic

2. Species

3. Ecosystem diversity

How do humans impact biodiversity?

They are taking away lands from the animals which is impacting where they are living now.