4.5 Species And Taxonomy

Question 1

Why can’t 2 different specie produce fertile offspring

Answer 1

Different chromosome no.
So homologous chromosomes cannot form (no meiosis)

Question 2

Make the taxa in the hierarchy of coassification

Answer 2

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

Question 3

How are each species universally identified

Answer 3

Its genus and species name (Homo, sapiens)

(Binomial naming)

Question 4

Advantage of binomial naming

Answer 4

Universal

No confusion

Question 5

What is a phylogenetic tree

Answer 5

A tree diagram showing how close species are related to

      —————. A species  ——-
     \       ——— B species 
      ——
              ——— C species

Question 6

Advantages that have helped clarify evolution trees

Answer 6

Advances in genome sequencing, this allows comparisons of DNA base sequences

Advantages in immunology, shows protein tertiary structure (comparison)