Chapter 8 Evolution

Question 1

Evolution

Answer 1

Changes in population, species or groups of species

Occur because population vary by heritable traits that appear from one geenration to the next

Question 2

Microevolution

Answer 2

How poopulations of organism change from generation to generation and how new species originate

Question 3

Macroevolution

Answer 3

Patterns of changes in groups or related species over broad periods of geologic time

These patterns determin phylogeny

Question 4

Phylogeny

Answer 4

Relationships between species and groups os species

Question 5

Lamarck Theory

Answer 5

1. use and disuse- body parts can develop with increased usage and unused parts weaken (correct)
2. Inheritance of acquired characteristics- body features acquired during the lifetime of an organism (body muscle) could be passed to offpsring (incorrect only genetic material can be passed down to offspring)
3. Natural transformation of species- Organisms produced offspring with changes, transforming each generation into slightly different form toward some ultimate, higher order complexity. Species did not become extinct or split and changed into more species (incorrect)
   * Theorized incorrectly that evolution occurs through the inheritance of aqcuired traits.