BIO 1108 - FINAL EXAM QUESTIONS
WITH ANSWERS 2026/2027
Ametabolous - Correct answer✅✅ - Young and adults wingless
- Only change in size
- Example: silverfish
Hemimetabolous - Correct answer✅✅ - Young (nymphs) resemble adults
- Example: grasshopper
Holometabolous - Correct answer✅✅ complete metamorphosis
- young larvae completely different from adults
-pass through a usually sessile pupal stage
-example: butterfly
Ecdysozoa - Correct answer✅✅ Supergroup of protostomes; characterized by periodic molting of their
cuticle/ exoskeleton. Include the nematoda and arthropods.
what 2 groups make up the Protostomes? - Correct answer✅✅ Lophotrochozoa and Ecdysozoa
1. What do all deuterostomes have in common?
A) Adults are bilaterally symmetrical.
B) Embryos have pharyngeal pouches that may or may not form gill slits.
C) All have a spinal column.
D) All have specialized head and tail regions.
E) The pore formed during gastrulation becomes the anus. - Correct answer✅✅ E) the pore formed
during gastrulation becomes the anus
, 1. A synapomorphy of the vertebrates is the _____.
A) bony skeleton
B) cranium
C) pharyngeal pouch
D) dorsal hollow notocord
E) podia - Correct answer✅✅ B) Cranium
1. Which of the following taxa would you NOT classify as an animal?
A) Acoela
B) Echinodermata
C) Protista
D) Ctenophora
E) Chordata - Correct answer✅✅ C) Protista
Which evolutionary innovation was most significant in helping tetrapods become independent of
aquatic environments for reproduction?
A) lungs
B) amnion layer
C) calcified bone
D) limb specialization
E) endothermy - Correct answer✅✅ B) the amnion layer
1. Which one of these groups does NOT molt?
A) Crustaceans
B) Arthropoda
C) Molluska
D) Chelicerata
E) Nematoda - Correct answer✅✅ C) molluska
WITH ANSWERS 2026/2027
Ametabolous - Correct answer✅✅ - Young and adults wingless
- Only change in size
- Example: silverfish
Hemimetabolous - Correct answer✅✅ - Young (nymphs) resemble adults
- Example: grasshopper
Holometabolous - Correct answer✅✅ complete metamorphosis
- young larvae completely different from adults
-pass through a usually sessile pupal stage
-example: butterfly
Ecdysozoa - Correct answer✅✅ Supergroup of protostomes; characterized by periodic molting of their
cuticle/ exoskeleton. Include the nematoda and arthropods.
what 2 groups make up the Protostomes? - Correct answer✅✅ Lophotrochozoa and Ecdysozoa
1. What do all deuterostomes have in common?
A) Adults are bilaterally symmetrical.
B) Embryos have pharyngeal pouches that may or may not form gill slits.
C) All have a spinal column.
D) All have specialized head and tail regions.
E) The pore formed during gastrulation becomes the anus. - Correct answer✅✅ E) the pore formed
during gastrulation becomes the anus
, 1. A synapomorphy of the vertebrates is the _____.
A) bony skeleton
B) cranium
C) pharyngeal pouch
D) dorsal hollow notocord
E) podia - Correct answer✅✅ B) Cranium
1. Which of the following taxa would you NOT classify as an animal?
A) Acoela
B) Echinodermata
C) Protista
D) Ctenophora
E) Chordata - Correct answer✅✅ C) Protista
Which evolutionary innovation was most significant in helping tetrapods become independent of
aquatic environments for reproduction?
A) lungs
B) amnion layer
C) calcified bone
D) limb specialization
E) endothermy - Correct answer✅✅ B) the amnion layer
1. Which one of these groups does NOT molt?
A) Crustaceans
B) Arthropoda
C) Molluska
D) Chelicerata
E) Nematoda - Correct answer✅✅ C) molluska
