2.6 Concepts of Species and Speciation (Part 1)

Question 1

What is the process in which a species splits into two or more species?

Answer 1

Speciation

Question 2

What is the Latin word for “kind”/”appearance”?

Answer 2

Species

Question 3

How do we organize different organisms as species?

Answer 3

By differences in physical appearance

Question 4

What are the (4) different concepts of defining species?

Answer 4

biological, morphological, ecological, phylogenetic

Question 5

What concept defines species based on reproductive compatibility, or the potential to interbreed and produce fertile & viable offsprings?

Answer 5

Biological

Question 6

What does the concept of biological species rely on?

Answer 6

reproductive isolation

Question 7

What do you call biological barriers which prevent populations of organisms to interact, interbreed and produce fertile offspring?

Answer 7

reproductive isolation

Question 8

What are mechanisms of reproductive isolation?

Answer 8

separation of habitat; breeding seasons; mate recognition; reproductive organ incompatibility

Question 9

Which concept groups species separately in terms of similarities in morphology/body structure?

Answer 9

Morphological

Question 10

What concept groups species separately in terms of ecological niche/role in the ecosystem?

Answer 10

Ecological

Question 11

What concept separates species according to their behavioral differences and habits?

Answer 11

Ecological

Question 12

What concept separates species according to their common ancestors (branch in tree of life)?

Answer 12

Phylogenetic