BIO 152 MODULE 6 EXAM 2026 ACTUAL TEST
PAPER QUESTIONS SOLUTIONS VERIFIED
COMPLETE STUDY PACKAGE
◉ Give an example of homologous structures.
Answer: Human arm, cat leg, whale flipper, and bat wing all have
similar bone structures but different functions.
◉ Why are homologous structures important evidence for
evolution?
Answer: They show that different species share a common ancestor.
◉ What are analogous structures?
Answer: Structures that have similar functions but different
underlying structures and no common ancestor.
◉ Give an example of analogous structures.
Answer: Bird wings and insect wings both allow flight but are built
differently.
◉ What do analogous structures show about evolution?
,Answer: They show convergent evolution—unrelated species
adapting similarly due to similar environments.
◉ What are vestigial structures?
Answer: Body parts that have lost most or all of their original
function over time.
◉ Give an example of vestigial structures.
Answer: Human appendix, wisdom teeth, whale pelvic bones.
◉ Why are vestigial structures evidence for evolution?
Answer: They show how species have changed over time from
ancestors that used those structures.
◉ What is comparative embryology?
Answer: The study of similarities in embryos of different species.
◉ What does embryology show about evolution?
Answer: Early embryos of different species look similar, suggesting a
common ancestor.
◉ What happens to embryos as they develop?
, Answer: They become more different as they develop traits specific
to their species.
◉ What is comparative biochemistry?
Answer: Comparing DNA, RNA, or proteins between species.
◉ Looking at DNA, how do you determine which species is most
closely related?
Answer: The species with the most similar DNA sequence (fewest
differences) is the most closely related because they share a more
recent common ancestor.
◉ Why is DNA strong evidence for evolution?
Answer: It shows how species are related at the molecular level.
◉ What are fossils?
Answer: Preserved remains or traces of ancient organisms.
◉ What are transitional fossils?
Answer: Fossils that show intermediate forms between ancient and
modern species.
◉ Why is the fossil record important?
PAPER QUESTIONS SOLUTIONS VERIFIED
COMPLETE STUDY PACKAGE
◉ Give an example of homologous structures.
Answer: Human arm, cat leg, whale flipper, and bat wing all have
similar bone structures but different functions.
◉ Why are homologous structures important evidence for
evolution?
Answer: They show that different species share a common ancestor.
◉ What are analogous structures?
Answer: Structures that have similar functions but different
underlying structures and no common ancestor.
◉ Give an example of analogous structures.
Answer: Bird wings and insect wings both allow flight but are built
differently.
◉ What do analogous structures show about evolution?
,Answer: They show convergent evolution—unrelated species
adapting similarly due to similar environments.
◉ What are vestigial structures?
Answer: Body parts that have lost most or all of their original
function over time.
◉ Give an example of vestigial structures.
Answer: Human appendix, wisdom teeth, whale pelvic bones.
◉ Why are vestigial structures evidence for evolution?
Answer: They show how species have changed over time from
ancestors that used those structures.
◉ What is comparative embryology?
Answer: The study of similarities in embryos of different species.
◉ What does embryology show about evolution?
Answer: Early embryos of different species look similar, suggesting a
common ancestor.
◉ What happens to embryos as they develop?
, Answer: They become more different as they develop traits specific
to their species.
◉ What is comparative biochemistry?
Answer: Comparing DNA, RNA, or proteins between species.
◉ Looking at DNA, how do you determine which species is most
closely related?
Answer: The species with the most similar DNA sequence (fewest
differences) is the most closely related because they share a more
recent common ancestor.
◉ Why is DNA strong evidence for evolution?
Answer: It shows how species are related at the molecular level.
◉ What are fossils?
Answer: Preserved remains or traces of ancient organisms.
◉ What are transitional fossils?
Answer: Fossils that show intermediate forms between ancient and
modern species.
◉ Why is the fossil record important?
