3.4.5 Species And Taxonomy

Question 1

Define species

Answer 1

A group of similar organisms that are able to reproduce to give fertile offspring

Question 2

What are the advantages of courtship

behaviour?

Answer 2

Individuals can recognise sexually
mature members of their own species of
the opposite sex, synchronise mating,
form a pair bond, and successfully
breed.

Question 3

Define classification.

Answer 3

The process of arranging organisms into

groups.

Question 4

Name the eight groups an organism can be

classified into, from largest to smallest.

Answer 4

Kingdom (King) 
Phylum (phillip)
class (came)
Order (over) 
Family (for)
Genus (great)
species (sex)

Question 5

Define hierarchy

Answer 5

small groups are placed within larger groups with no overlap between groups.

Question 6

What is each group called in a hierarchy?

Answer 6

Taxon

Question 7

What is phylogenetic classification?

Answer 7

The process of arranging organisms into
groups based on their evolutionary
origins and relationships.

Question 8

How can we clarify evolutionary relationships

between organisms?

Answer 8

Analyse their molecular differences.
Advances in immunology/genome
sequencing provide clear pictures of how
related two organisms are.