10.1

Question 1

What is classification?

Answer 1

The name of the process given when living organisms are sorted into groups. The organisms in each group share similar features

Question 2

What is taxonomic groups and who proposed it?

Answer 2

• Taxonomy is the practise of biological classification/based off increasing similarities
• the number of species decreases as we go down
• Similar kingdoms can be grouped into domain
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• Kingdom, Phylum, class, order, family, genus and species

It was proposed by Carl Linnaeus

Question 3

Why do scientists classify organisms?

Answer 3

• To identify species
• To predict characteristics
• To find evolutionary links

Question 4

Why do scientists use a single classification system?

Answer 4

So scientists worldwide can share their research and links between diff organisms can be seen, even if they live in different continents.

Question 5

How are organisms separated into 3 domains?

Answer 5

Archea, Bacteria and Eukarya

Question 6

What is a species?

Answer 6

A group of organisms that are able to reproduce fertile offspring
Mules aren’t considered to be a species since they are infertile (they are produced when a donkey and a horse are bred together)
They contain an odd number of chromosomes (63) therefore have 64 chromosomes and donkeys have 62 chromosomes

Question 7

What was used before classifications systems and binomial nomenclature?

Answer 7

• Organisms were given names according to physical characteristics, behaviour or habitat
• Not useful for scientist working internationally, as organisms may have more than one common name
• Common names do not provide information about the relationships between organisms

What is binomial nomenclature?

• First word indicates organisms genus (more generic)
• Second word indicates species- it is more specific
• Example- Homo sapiens
• Allows species to be universally identified
• Always italicised