Phylogeny And Tree Of Life

Question 1

Define taxonomy

Answer 1

Science of naming and classifying organisms within groups

Question 2

Define phylogeny

Answer 2

The evolutionary history of a species or group of species (tree of life)

Question 3

Define systematics

Answer 3

Science of determining evolutionary relationships among organisms

Question 4

In a phenetic system, what are group organisms based on?

Answer 4

Phenotypic similarity only

Question 5

Why is the phenetic system unreliable?

Answer 5

Doesn’t distinguish between homologous and analogous characteristics

Question 6

In a cladistic system and classic evolutionary, what are groups based on?

Answer 6

Similarity of characters that reflect evolutionary relationships

Question 7

What are the differences between classic evolutionary and cladistic system?

Answer 7

Classical: shared charters, primitive and derived

Cladistic: derived characters most important

Question 8

Which system only accepts monophyletic groups?

Answer 8

Cladistic

Classical accept both mono and paraphyletic groups

Question 9

What is a photogenic tree?

Answer 9

Graphical representation of evolutionary relationships among a set of organisms or groups or organisms