Introduction

Question 1

primitive/ancestral traits

Answer 1

traits inherited from a common ancestor and have remained relatively unchanged. ie. vertebral column

Question 2

derived/specialized traits

Answer 2

traits evolved more recently that are not present in a common ancestor. ie. bipedal locomotion

Question 3

homologous traits

Answer 3

ancestral traits across multiple species that have different functions. ie. forelimbs in tetrapods

Question 4

homoplasious/analogous traits

Answer 4

traits that appear similar in different species, but do not come from a common ancestor. ie. eyes in vertebrates and octopus

Question 5

shared traits among primates

Answer 5

1. self awareness
2. language
3. using tools
4. cultural tradition
5. transmission of knowledge